Ansys Magazine AA V5 I1 Full Version

8/20/2019 Ansys Magazine AA V5 I1 Full Version

1/49

A D V A N T A G EE X C E L L E N C E I N E N G I N E E R I N G S I M U L A T I O NV O L U M E V I S S U E 1 2 0 1 1

TM

SustainableDesign

REDUCE

PROTOTYPES

PAGE 12

INNOVATE

QUICKLY

PAGE 6

SAVE

ENERGY

PAGE 17


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To learn more about ANSYS acceleration on Tesla GPUs, visit www.nvidia.com/tesla.

©2011 NVIDIA Corporation. NVIDIA, the NVIDIA logo, and Tesla are trademarks or registered trademarks of NVIDIA Corporation in the United States andother countries. Other company and product names may be trademarks of the respective companies with which they are associated. All rights reserved.

2X THE DESIGN CANDIDATES.NO TRADE OFFS.ANSYS MECHANICALWITH NVIDIA® TESLA™ GPUs

Accelerate your design with ANSYS Mechanical 13.0 and NVIDIA® Tesla™ GPUs (graphics

processing units). The GPU-accelerated ANSYS structural mechanics solution enables you

to double your simulation speed, while reducing prototyping time and shortening design

cycles—doubling your design candidates within the same design cycle with no trade offs.

This acceleration is possible when you run ANSYS Mechanical on a workstation equipped

with a Tesla GPU featuring many “must have” capabilities for technical computing.

These Tesla GPU-powered workstations deliver performance increases that accelerate the

performance of computing with CPUs alone.


3/49 ANSYS Avana • V V, Iss 1, 2011www.ansys.c

TABLE OF CONTENTS

1

Table of ContentsSuStAINAble deSIgN4 BEST PRACTICES

Green Design without Compromise Companies can gain a sustainable competitive advantage and be

environmental stewards — through robust design and optimization.

6 TRANSPORTATION

Cleaner, Greener Engine DesignCummins uses simulation to reduce weight, improve fuel

economy and reduce emissions of engines.

9 CONSTRUCTION

Brussels’tainable Simulation helps to determine potential environmental impact

in preparation for a massive renovation in Brussels.

12 ENERGY

Catch the Next Wave Hydrodynamic simulation helps to deliver two- to three-times wave

power efficiency improvement.

15 ENERGY

Reacting to Emissions Fluids simulation helps to speed up research into chemical-looping

combustion capable of reducing fossil fuel emissions.

17 CONSTRUCTION

Meeting Green Building Design Goals withEngineering SimulationSimulation is driving innovation in HVAC design for an assembly hall in Saudi Arabia.

19 OFFSHORE

Don’t Rock the Float! Fluid–structure interaction allows designers to assess impact of waves

on freshwater and offshore systems.

22 ENERGY: WIND

Energizing the Wind Industry Increased complexities require a system-level approach

in designing and evaluating wind turbines.

24 ENERGY: WIND

More Power to You Simulation helps Indar to design one of the world’s highest-efficiency

permanent magnet wind turbine generators.

6

9

12

17

24

4


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27 ENERGY: WIND

Where the Wind Blows

Engineering simulation plays a role in getting the most powerfrom wind farms by predicting the best available locations.

30 ENERGY: WIND

Second Wind Advanced turbulence models lead to optimized wind turbine spacing.

SImulAtIoN@Work

32 AEROSPACE

Fast Lane to Sky HighFluid flow simulation software co-pilots design of

production prototype roadable aircraft.

35 ELECTRONICS

Successful LaunchCircuit and field tools combine to optimize satellite multiplexer design,

reducing time from 10 weeks to two days.

38 SCIENTIFIC EQUIPMENT

Glass Jaw Simulation helps to solve collimator jaw design problem in

the Large Hadron Collider.

depArtmeNtS41 ANALYSIS TOOLS

Designing Batteries for Electric Vehicles Numerical simulation can be used to accelerate battery development

and address safety concerns.

44 ACADEMIC

Microbubbles Keep Green Energy Blooming Algae-derived biofuel production gets a strong pulse from flow simulation.

46 ACADEMIC

Reforming a Fuel Cell Modeling ProcessCoupling flow simulation with complex chemistry tools brings a united

front to analyzing leading-edge energy systems.

48 TIPS AND TRICKS

Accelerating CFD Solutions Several recent enhancements in ANSYS FLUENT solver

capabilities accelerate convergence and reduce solution time.

www.ansys.c ANSYS Avana • © 2011 ANSYS, Inc.

TABLE OF CONTENTS

2

30

32

38

46

41

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6/49www.ansys.c

BEST PRACTICES

ANSYS Avana • © 2011 ANSYS, Inc.4

Green Designwithout CompromiseCanis can ain a ssaina ciiv avana an nvinna swas — hh s sin an iizain.

By Thierry Marchal, Industry Director, ANSYS, Inc.

The Need for Sustainability

thh ch f h w, xc ha if

wi c , asi an cfa f

sccin nains. ov h as cny, ivis

nc ii h wahy hav c cnac;

in, any a nw cnsi a ncssiy. ownin a

ca, fyin an h w, accssin a c,

cnncin h inn f anywh, an sin a c

hn a in aciviis, vn in in cnis.

Hwv, h w can’ ssain sch xnnia

wh fv. th an has civ a wa- ca

a assin vcnsin. many scinisssa haicay ha w a in an, an h

han scis, in an.

th ain is aiy ainin h w’s fssi

ny scs; a h sa i, issins f hs

fs a naivy iacin h nvinn an is

naa vin. H ans f was aia a

in s wih h h ha h ah can c wih i.

ms a awa ha h cann ssain

hs acics fv. Whi a win n f

a in h w’s ain shin

a i, any inivias a nwiin sacific hi

cfa ifsy.

Reluctance to Sacrifice Current Standards

Wih a , cas c nvinnay

finy, if y svy h an, w y fin

wiin ay achiv his jciv? ms

w can acc sinifican cins in

fanc, s accain. gn iin is a

cn asiain, wi h ccans a in

a i ss wa in win, an a i wa in

s? rnwa ny is a “s ” ny if h

sin w is ss xnsiv an a as as

sa. An aia a: Can w ach i wih

sna cis?Cn sns icas ha w can’ sch

xcains sin aiina aachs an ch-

nis. ra ahhs ay ncssay

achiv ssainaiiy as in hs aas:

• Better energy management: Fssi fs ain

an ian ny sc, hy c

s ffcivy an scivy. Scs

f nwa nis sh xi.

tansain, cnscin an anfacin

s c ny fficin.

• Pollution reduction: twny-fis cny ifsys

s in h as f h qaniis f vaisaias in h nvinn, ain asin

an cycin f hs ssancs iffic wih a

ic iac n h an.

• Product lifecycle: Af a ifi f s, cs

qicy c was aia. Shn c

if incass h an f was. pcssin

cyc aias in nw cs in a cs-

ffciv ann can nfi ay f n

siain chny.

Virtual Experimentation, Virtual Testing, Virtual Prototyping

If ssaina cs an csss ay a

y “nic hav,” i is iy n sin wi c

anay in h f, isa an fc y a

sss v sins. pins an

ain canis a aay ain f his vin

y sinin ssaina sins. b h chan is

Engineering for sustainability includes designing more efficient waysto treat waste, such as studying settling in a wastewater treatment tank.Courtesy MMI Engineeering.


7/49

sana chny. dsinin sa, n cs

a hih v f c iniy qis invsiain a

win n f aas — sch as insin,aias an ain cniins — vi

sins wih nh f ns

cnsains. rs sin incs inificain f

infnia aas an vaain f sin snsiiviy

as n fin vaiains.

th cinain f aaic sis an snsiiviy

anaysis f a a n f aas sin avanc

s (s sin an iizain) ns h a

nw a f sin.

Engineering Simulation: A Profitable Green Technology

eninin siain has vn is cs-ffcivnss in vin innvaiv cs. this

sa chny can s

sin n cs

an csss. pinin c-

anis a aay cain a

can an fia

f y chanin hi sin

csss an wiy ain

siain ansf h

n chan in a aj

sinss niy. this iss

f ANSYS Advantage isas

hw canis a sin

chnsiv ina i-

hysics f ANSYS ainain

ca snsiiiy whi

incasin fi. n

www.ansys.c 5

BEST PRACTICES

5

anin. envinnay finy cs ay qi

aj innvains ha c iac h cs an s-

nss. Innvain say qis inns xinainan iizain. ra ahh sins n

sysaic sin ns ha nw sins hav

y hh h ni ifcyc. exinain

an sin csss a yicay i innsiv, csy

an iffic ana in a hihy ciiv w.

bs-in-cass canis a assin his iss y

swichin h via w.

Ns s an insy sis, s fn

in his iss f ANSYS Advantage, ss ha an

f ani xinain can n viay

f a sa cs. eninin as can vay ns

aas inify h s cinain f ssainasin, inia cs an axia fanc. lain

canis a sysaicay sin

hi via c ys aains

cniins ha w xinc

hh h ifcyc ns ha

c havi wi saisfy n ss.

Cninay incasin caina

w cin wih hih-fficincy

svs can cni h ff:

thy ih na h n

cxiy f via ss

vy 18 nhs wih iac n

cs i a.

Robust Design and Optimization

S s a i n a i i y as a n w

insin ha is iffic han wih

Engineering simulation can help organizations meet regulations and standards. This study was used to assess the impact of fume cupboarddischarges on surrounding buildings and the environment.Courtesy BDP Engineering.

Designing smart green products to a high levelof product integrity requires advanced tools thatinvestigate a growing number of parameters.

ANSYS Avana • V V, Iss 1, 2011

P 1 2 - F K a l o t t e [ N ]

P 6 - p a r_ R

k

P 1 0 - p a r _R d

10

9

8

7

6

0.35

0.4

0.45 0.850.75

0.650.55

B a c k g r o u n d p h o t o © i

S t o

c k p h o t o . c o m / o o y o o


8/49

Cleaner, GreenerEngine DesignCins ss siain c wih,iv f cny an c issins f nins.

By Bob Tickel, Director of Structural and Dynamic Analysis, Cummins Inc., Columbus, U.S.A.

th has “nvinnay snsi” sn’ s

fi in a snnc wih h s 18-wh ac ai

an havy-y c. As a w-ain anfac f

ccia nins an a syss, Cins Inc. is

win chan ha cin n sin a a i,

vin nx-nain chnis ha a v-

inizin h innaina cin insy.

usin sfwa f ANSYS, Cins is vin

an sin aica ivns in nin sin,incin h s f anaiv aias an sa

nin fins ha c wih, iv f

cny an c issins — whi as sin

fanc. th w f h ca sach an

chny anizain fcss n vin nw,

nvinnay snsi chnis f h

cany’s c nin sinss.

Cins’ cn c vn ffs a a

a a f anin n f cny an issins —

an wih asn. gvnn nvinna

sanas w chanin vy ya. bcas

ccia cin is a w-ain sinss, vyivn ha Cins as in f cny as

is css’ sccsss. byn hs acica

cnsiains, Cins invss in nvinnay

snsi nin chnis cas i is h ih

hin . th cany wans h cin insy

viw as an nvinna swa an chain,

n n f h “a ys.”

Building the Truck of the Future

In cniin f is nvinna chny

ashi, Cins cny civ nay $54 iin

in fnin f h u.S. dan f eny (doe)

s w jcs ai a ivin f fficincy inh havy- an ih-y vhics.

A $39 iin wi fn Cins’ vn f

a nw “sc” — a hihy fficin an can is-

f Cass 8 (havy-y) c ha is xc s a

nw insy sana f n chny. Anh

$15 iin in fnin wi s h vn f

avanc-chny wains f ih-y vhics.

th sin ivns in nin sys fficincy

wi an sinificany w f an

cnsin y hs vhics as w as a sinifican

cin in nhs as issins.

thh ais f his w a iay, Cinsis sin sfwa f ANSYS sia nin

fanc an achiv h aiis as fin y

h doe: Iv Cass 8 vhic fih fficincy y

50 cn an achiv a 40 cn ivn in f

cny in ih-y vhics.

Cummins ISX15heavy-duty engine

Cummins ISF3.8 lightcommercial vehicle engine

www.ansys.c ANSYS Avana • © 2011 ANSYS, Inc.6

TRANSPORTATION

I m a

g e © i

S t o c k p h o t o . c o m / P e s k y M o n k e y


9/49 ANSYS Avana • V V, Iss 1, 2011www.ansys.c 7

t isa hw Cins vas ANSYS sfwan a aiy asis, cnsi his cn c incin:

h nx-nain ISX15 nin sin, v

scificay sinn nw issins sanas

f h u.S. envinna pcin Ancy (epA).

ths ains, which ca f na-z issin

vs f nin xi (Nox) an aica a (pm),

ac nw ans n c anfacs an

f anas.

Cins s ANSYS chny v

nhanc a n f fas in h ISX15 sin,

incin h nw Cins afan sys ha

incas a vinay is aica fi (dpF)

a a in h nw issins sanas.

th dpF vs is aica a s

f h xhas as f a is nin. Cins s

ANSYS sfwa sia yica ain as an

a icins a h nw dpF’s fanc an

iaiiy. eninin siain ic h a

as an a isiin insi his

cnn n a an f ain cniins. ths

ha anayss w ciica as hy va h a

as an a ains wihin h fi,

which iay in h ha fai an if fh cnn.

Vayin as wihin h dpF s in ha

ssss; if his cnn is n sin y, -

a vaiains can a cnn fai. Whi i

ih a nhs yas f fai cc in a-

w s, sfwa f ANSYS na Cins

qicy sia h ffcs f yas f fi sa an

a icins a hw h dpF w h v

i. this av h ninin a a hih f

cnfinc as hy sin h cnn an insa

i in cs vhics.

Ssqn fi an nch ss cnfi h si-ain icins, as i aca a ss. enins

can ay y n via sin an, sfwa f

ANSYS cnfi ha h Cins sin css was

vin in h ih icin — an ha h ss w

as a s xc.

Using Simulation to Rev Up Ongoing Engine Improvements

envinna sanas an cs ns a an

v-vvin a. S h Cins a ss

ninin siain iv nin fas an

s fanc. dsin chans ha c

issins an f cnsin fn s in hih

as an sss wihin h nin, which

qi Cins nins cninay s h iis f

cnvnina nin sins.

ms aias s in is nins xhii c

snh as a iss. th cinain f hih

ss/a an c snh acs sss

n cnns sch as h cyin ha, a icay

cx casin ha svs any fncins incin

ansfin nin i an can, inain ai an

xhasin as. th ha as hss h f injc

an vav ain cnns; i s cnain h cs-

in ass in h cyin fiin vn. t ass h

i fcs ha c in ay, Cins nins

s ihysics sfwa f ANSYS cin

ha an sca anayss in hi w n his

shisica nin cnn.

Siain s f ANSYS na h Cins

ninin a vaa h s f nw aiasacss h ni ica sfac f cyin has

an h nin cnns. ANSYS aws h

Cins a qicy an asiy answ qsins

By using software from ANSYS to predict maximum temperaturesand temperature distribution within its new diesel particulate filterunder diverse conditions, Cummins engineers can ensure that themanufactured component will have acceptable durability.

Cummins new aftertreatment systemaimed at meeting emissions standards

Selective catalyticreduction (SCR) catalyst

Diesel exhaust fluid (DEF)dosing valve

Cummins particulate filter

Decomposition filter

TRANSPORTATION


10/49www.ansys.c ANSYS Avana • © 2011 ANSYS, Inc.8

sch as, “Wha hans if w anfac h cyin

ha f h is nw a ia? Wha a h

fanc ains?” wih h n acay achinan s nw cnns. Win in a sia

nvinn ivs hs nins h f wa

xisin nin sins — as w as aiv a s

“can-sh” sins ha ay hav h w v-

iniz nin fanc.

th a cny s sfwa f ANSYS

ic a fis in cyin has n

vais ain cniins. th ha ss w

s in hw his cnn w f in

h a w, as w as is hsh f h w-cyc

an hih-cyc fai.

Sinc cyin has a n-a-i, xnsivcnns, h Cins a s s ha a nw

sin is ih f vin fwa. usin siain

s f ANSYS, Cins nins can n ny

ca xacin s ss as s

incas civiy y incain caaiiis sch

as cnja ha ansf in in hi sins.

Wih anaysis- sin inc nw

aias an nw a cnfiains, Cins w

Cummins engineers can easily test the effectiveness of new materials,new designs and other innovations — and predict their long-term effecton overall engine performance. For example, Cummins engineers usedsoftware from ANSYS to simulate the impact of new materials on acylinder head design.

Wih s any nin cnns an fanc

ascs cnsi, h Cins ninin a

s f a wi an f sca siain

an anaysis. Accin b tic, ic f

sca an ynaic anaysis a Cins,

sfwa f ANSYS is h ny sin-vn

wih h chnica ah an h

his chan.

rcny, h Cins ca sach

an chny a an h swich f haiina infac f ANSYS sfwa h

ANSYS Wnch a f, a cisin as

iaiy n h c’s iv y i,

can an shin caaiiis. tic anicias

a 50 cn cin in hh i as

n h v ANSYS Wnch.

“th ANSYS Wnch nvinn vis

accss h s ihysics s w n

cnc any ys f siain an anaysis,” sai

tic. “Whh n is ha, sca,

ynaic saic ninin anaysis, ANSYS

Wnch vis h fxiiiy an vsaiiy

acca ns — as w as h i-

hysics caaiiis in h ss f vais

siains.”

tic n ha h fficincy an cs ffciv-

nss f ninin siain has s in a

c ca chan a Cins. “th as f

sin siain s f ANSYS has h

ansf anizain f a s-cnic c

an anaysis-cnic n,” sai tic.

“Whn invsiain a nw aia h sinnhancn, aiinay w w i nw as

an cnc hysica ss as a fis s — which

sn a i- an cs-innsiv aach,”

h sai. “tay, w fcs anin n fn

anaysis, ny vin a-iin an sin f

hs sin ivns ha w can vify fis sin

ANSYS s. this nw ca aach has n ny

sav s i an ny, aw s scivy

fcs anin n hs sin nhancns

ha a shwn h h as is f

vinizin f nin sins.”

Shifting Gears: ANSYS Creates a Cultural Change

hav y insa n vy xnsiv, i-cnsin

nanc ss vify h ninin a’s sins.

ANSYS is a y na Cins, cin h

cany’s va cs f vn y iniizin is

invsn in hysica nin sin. this aach

aws h sin f a nvinnay finy

nin wih cisin cs fanc. n

TRANSPORTATION


11/49

Brussels’tainableSiain hs in nia nvinna iacin aain f a assiv nvain in bsss.

By Tin Meylemans, Architectural Engineer, and Jean-Pierre Demeure,

Head of Urban Planning, City of Brussels, Belgium

Arnaud Boland and Quentin Hamoir, Support Engineers, ANSYS, Inc.

In 1992 in h eah Si in ri Jani,200 cnis — incin bi — a Ana

21, an acin a f h 21s cny na

ay ssaina vn n h an. An

h a’s ain jcivs is snsi anan

f naa scs an hanis an vn.

As h fa caia f bi an an ainisaiv

cn f h ean unin, h Ciy f bsss has

n a a y xa. I is as a i cni

nain awanss f hw a ciis can naay

vv nvinnay finy an wh.

gi y Ana 21 an a in an

viaizain, h ciy n nvain f h Sa

Ainisaiv Ciy, CAe (Cié Ainisaiv 'ea),

an ian si in wnwn bsss. ofn cniz

as h fins achica achivn in bsss sinc

W Wa II, CAe is nvhss an an annin

fa, as i iina an ni isic an h

an faic wih is 140,000 sqa s f ffic

sac. As h bian fa vnn vv, h

ainisaiv ciy has n n s sinc h ay

2000s, avin his h si ncci. Is nvain

ha c a ciy iiy. tay h si is nin a

assiv nvain jc ha cins hsin,

ffics, shs, as an a sch.

bf any aj jc is cnsc, bian aw

qis an nvinna iac sy ha incs

cnic an scia facs, nvinna assssns,

iiy sis, hah infncs an nis v ffcs. Initial (top) and modified (bottom) geometries of Brussels’ CAE

The State Administrative City inBrussels was completed in 1983and is now largely unused.Photo courtesy Michael Uyttersprot.

www.ansys.c ANSYS Avana • V V, Iss 1, 2011 9

CONSTRUCTION



CONSTRUCTION

th Ciy f bsss sc h ANSYS ffic in bi

invsia win fw ans f h nw si an

ca iffn ins f iin cains — via

ninin siain.

Win anaysis is sf in syin any aas

a a si’s s cf, in his cas incin

hih-is iins an n sacs. In s insancs,h iin acs as a scn an ivs cf, in

hs h win an c cas sinifican iscf

— an ih vn ans — sians an

ccans. Sva ian hnna can cc, sch

as channin an w ffcs, ha a ca win

accain an incas nc. ths hnna

can cni iscf f ca a n

v, acs an acnis. th win ffcs can

as aa vain an na nwan

ss ffcs n iins ha cas whisin

aia aa.

A y ica cf ci ia f h tNo (aninnn sach anizain in h Nhans

whs ai is ay scinific nw snhn

h innvaiv w f insy an vnn) qis

ha h win s in an aa 1.75 s av h

n sh n xc 5 s/scn f han

220 hs ya. In inifyin aas f iscf, h

sana s xss in s f aificain

fac (AF), h ai wn vciy wih an wih h

iin. A fac a han 1 ans h fw is

acca y h iins. Cnsiin bsss’

ica aa v h as 10 yas, an AF f ss

han 0.88 saisfis h s-siciv cf ciin.pjc nins invsia w cnfiains f

nvinna iac an wih a ssi n

iniiz h naiv iacs f win. th fis

cnfiain, ca iniia sa, cnain h ay f

h jc (h v nv sci y h Ciy f

bsss in which h iin s sia saisfy

ca annin ains). A scn cnfiain, ca

h ifi y, was si qanify h iac

f achica chans, sch as ws in i n

sis, achica ais, sch as cavins

nins ac n iffn vs/sis f h

sc. bcas ans f s f h aa w nc a h i f anaysis, his sy w shw

wh chans c hav an iac.

Initial design

Areas of potential discomfort in original (top)and modified (bottom) designs

Engineering simulation was performed to determine pedestrian comfort levels (with yellow and red indicating discomfort).

Recommended revision


13/49www.ansys.c ANSYS Avana • V V, Iss 1, 2011 11

CONSTRUCTION

th ANSYS a in h aificain fac a

han hih f h cnfiains, isain win

ffcs sch as cn ffcs na a iins an

channin ffcs wn csy sac iins. F

h iniia sa, a a f h s-siciv vas (in

which AF is a han ciica va) va aas wh

ca win s was hih an w a sian iscf. th ifi cnfiain c

aas f iscf y axiay a fac f h.

th a s ANSYS ninin siain

in aifw wn h iins, an hs ss

w s na vciy vcs inify scific

ins f ins, sch as cicain zns in which

s c acca. th ais vi infain

ha h in ajsin h iin sin avi hs

ys f zns. pahins f win ajcy vi

incas nsanin f win havi na iins,

incin nc, an inifi aas wh nia

s c cc. Finay, cin ss cn-s n h iins inifi aas ha w qi

scia ca in h sin has avi h cn-

cns, incin whisin s insfficin

insain aa h faca.

this jc nsas h s f ninin

siain f sa anizain. Sch anaysis can

vi chnsiv as f aifw ans, ca

win vciis an ca nc innsiis — a

sf in annin an vn jcs. Siain-

ivn iin sin vis infain a hw

scs affc h nvinn, which can an

ian a f iscssins an cisins f ajc’s fis sas. n

Pathlines showing wind trajectory colored by velocity magnitude for original (left) and new (right) designs provided increased understanding of windbehavior near buildings to determine areas of concern.

Pressure contours for original and new designs identified areas thatrequired special care during design to avoid insulation whistling

problems or potential façade damage.



If a h can’s ny c hanss, i w

c han 500 is h a ny cns-

in. th acica nia f wav ny wwi

is jc wn 2 iin an 4 iin iwahs ya. th W eny Cnci sias ha

a 10 cn f wwi ny an c

aisicay y havsin can ny.

b wav w is a ch ss a chny

han sa win w , sciay, fssi f.

A ns an f w is aha in iizin h

sin f wav w syss. rsachs s

iv fficincy an c css h in ha

hs syss can a a aj cniin in

a ny qins.

Cia pw tchnis (ColumbIA poWer),llC, is ain hanss his nia y vin

cciay via an scaa wav w nain

syss. In cnjncin wih on Sa univsiy, h

cany is win v an cciaiz

innvaiv wav ny havsin vics.

th a sva y avanas f wav w:

• Power density : Wav w is ch ns han

h nwa ny syss, nain wav

as c a ans f w f a

aivy sa fin.

• Predictability : th sy f ny f wav

w can accay fcas sva ays in

avanc, nain iiis a cis scin

ans.

• Constancy : uni sa w, which cs

ny ny whn h sn is shinin, can sws

a avaia 24 hs ay.

• Proximity to load centers: Wav ny wi n

qi ssania i f ansissin

caaciy, sinc 37 cn f h w’s ain

iv wihin 60 is f a shin, an 70 cn

si wihin 200 is.

Catch the Next WaveHyynaic siain hs iv w- h-iswav w fficincy ivn.

By Bradford S. Lamb, President, and Ken Rhinefrank, Vice President of Research and Development,

Columbia Power Technologies, LLC, Corvalis, U.S.A.

Preparing to test the wave power device

ENERGY

I m a g e © i

S t o c k p h o t o . c o m / M i c h a e l J a y



th wav w insy, hwv, facs a aj

chan sinc c vs hav ch ss

xinc in h sin f wav w vics aiv

h nwa ny syss. Wav wcanis n aiy avanc fficincy an c

css f hi sins nsa viaiiy nia

invss an css. oh insis hav an

cas n v chny h in f

ccia viaiiy. b h wav w insy s

n hav ha in f i. t achiv is as, i ns

aiy iv sins whi cnsvin ii caia.

ColumbIA poWer is fcsin n vn f

ic-iv syss, which avi h s f naic

an hyaic cnvsin ss an hi asscia

sss. th cany ivs ha ic-iv syssa h f f wav w cas hy a

fficin an ia as w as asi ainain. th

n-n sin chan was iiz h sin

f h y axiiz h in f wav w

ansf h y. raiv ca wih is a

insinss as f h

fficincy f h vic in

cain h avaia ny

f h wav. A aiv ca

wih f 1 ans ha h y

has ca 100 cnf avaia wav ny.

As Columb IA poWer

s in h

ia sha f h y,

nins a f iv

iffn hyynaic si-

ain sfwa acas. th

cany sc ANSYS

AQWA sfwa cas f is

as f s, an ss shw

ha i vi a ach

wih hysica xins

han i ciiv sfwa.

ColumbIA poWer as

va ha ANSYS AQWA

COLUMBIA POWER’s wave power system: The wings and vertical spar react to the shape of the passing ocean swell. Each wing is coupled bya drive shaft to turn its own rotary generator.

Wave direction

2 3 4 5

COLUMBIA POWER engineers doubled efficiency of the buoy by using ANSYS AQWA to optimize its geometry.

ffs h fqncy an i ain sins.

Fqncy ain sins a fas, which as h

ia f qicy vaain a a n f shas,

whi i ain sins vi h hih v faccacy n fin h s shas in h a

sas f h sin css.

ColumbIA poWer nins v an iniia

cnc sin in SiWs®, i a y an

s i a 1/33 sca in h tsnai Wav basin a h

Hinsa Wav laay a on Sa univsiy. th

a s hih-sin caas ac ih-iin

is n h y, asin is in in h wavs.

enins x h cnc sin ANSYS AQWA

sfwa an f a i ain siain whi

sin a wav cia wih h sa ai anfqncy as ha as in h wav an. th was

a vy ach wn h asns an

icins f ANSYS AQWA. Sinc hn, nins

hav s ANSYS AQWA as hi iay sin

iiz h sha f h fi-infc asic (Frp) y.

ENERGY

1



ENERGY

ColumbIA poWer has sinc vaa v 350

iffn is wih ANSYS AQWA in an ff

axiiz h aiv ca wih f h y. A h

sa i, h cany w csy wih eshis Inc.,

is sca an ha cs h Frp fas,

x h anfacaiiy f vais shas an

ns ha h fina sin can c a a w

cs. th cany as a h svivaiiy an

nvinna iac f s y sins.

ColumbIA poWer nins s a sinsia wav

sha an a si f wav fqncis anin f 2scns 20 scns f fqncy

ain siains. th sns

ai as caca y ANSYS

AQWA sfwa w s in a s-

cssin in win y ColumbIA

poWer nins ha cacas h

aiv q an s f h y as

w as h aiv ca wih.

onc hy f ha hy w cs

an ia sha f h y, ColumbIA

poWer nins v i ain

in, which as i ssi

vaa h nnina ffcs f h

wavs. th a vaa h shas

ha ha vn s in fqncy ain

in aains a vaiy f wav

cias, incin hs fn a svn

iffn casa cains an h

w. A h sa i, nins an

iizin h w aff sys ha

cnvs chanica ny in cica

ny. ANSYS AQWA ss f

fqncy ain s w s-

css in maa® Siin® inca h w

aff acin q an c w .

th ANSYS AQWA i ain s w c

a dll ha sia h ina an nnina w

aff ain. th dll f h w aff

was v in maa ra ti®. enins s h

f ANSYS AQWA iv a nica

v in Siin ha sias h w aff

sys an cn say. th cn say ns

h w aff h wav cia y chanin h

an f cn c y h na, which, in

n, chans h chanica a ac n h sys.

this as i ssi cnsi in a sin h

ffcs f iffn y shas, w aff sys

sins an cn sais; i as hs in

h w ha w na y ach aach in a

vaiy f iffn wav cias.

ColumbIA poWer cny an sin maxw

canic siain sfwa f ANSYS

iiz h sin f h na. enins vaah iffn canic siain

sfwa acas an cnc ha

maxw was h asis s an h

s sa. maxw is in s

anayz h canic fanc f

h na whi vayin h ai as

wn h an sa, iffn

an is, iffn an

ys, an iffn ys f s. th v-

a a is axiiz h na’s

ny whi iniizin is cs.

As a chny sa wih fa-f-

nii fnin, ColumbIA poWer

s caia fficin. by fcsin is

vn ffs n siain an

sin hysica sin jicisy as a

vificain , ColumbIA poWer is

vin fwa in h vn css

ch fas han w ssi sin

aiina vn hs. ANSYS

AQWA an maxw sia in sf wa

na h cany a is isas

in h c, wh hy a fa ss

xnsiv han in h can. ANSYS AQWA chny,

in aica, h han h fficincy f

ColumbIA poWer’s wav w sys. ColumbIA

poWer has nfi f h xcn chnica

s an civ ainin sssins vi y

ANSYS. As a s, h cany is n ac sn

y h fis can nsain f is chny in

p Sn. n

Maxwell software from ANSYSwas used to optimize the

generator design.


17/49



ENERGY

asiy wn away y h win,

whas a i ain cainy

fas wih cnsia fc.

th sa hans in a fiiz

ac: th iny aics

cn a i n a

css an, hf, fa ch

aiy. If his csin is

n ccy, h si-

a in wi ic a

havin i a is, i

sh acay hav i a

hnshw. Cay, his wi

a ssania s.

In aiin, i is iv ha

aic scs infnc acins. Hih acin asa sv in ins wih hih v facins f

aics an acin as cncnains. A ns

aic cs sns a in in which s f sfac

aa is avaia f acin, an his sinificany

incass h acin a. Hwv, h cnsqnc is

ha h acin as insi h cs is s ch

fas, hy swin wn h acin. Csin is

acay an nwan hnnn in fiiz

acs cas i sws wn h acin a va

y cncnain a h sis in aas wih a w an

f acin as. Incc cs in, hf,

wi ic , nfnay vy wn,ac fanc.

th a a SINteF has acc h chan

cni fnana nw in h fi f si-

ain f sc sin n ac fanc.

rss hav shwn ha h which h css

hav sv (an hf h

caina cs f h siain)

ns ay n h aciviy f h

aic s in h ac. Whn a

hihy aciv aic is y, h

acin wn h f as an a

ns cs is as insanansan ccs as xcsivy n h

sfac f h cs. In his cas,

h s ian hnna

ccy a h aa f h

cs n which h acin can cc

an h ans f h acin as

scis his infac. Any sih

in h siin shanss f h

cs sfac wi a sinifican

in s.

Whn a ss aciv aic is s

in CFd siains, hwv, h

sin f h cs infac

cs ss ian. In his cas,

h acin a is sw nh aw

acin as na in h ai-

c css an ac hh h

ac ain. Sinc h ac-

in ccin n h cs s-

fac cnis ny a sa

an h a acin

a, h cc sciin f

his infac cs ss

ian.

p sin f aic

scs an wih achivin

hyynaic an acin

inic i innnc qi

nins ay aica

anin i siz ca

aic ia. t achiv

hyynaic i innnc

f ns s, h i siz can 25 aic ias vn hih, whi h fin scs f in iss

n i sizs f a axi f 15 aic ias,

vi hih- saia an a iscizain is

s. racin inic i innnc ws h

si way. I is vy snsiiv in ns s sinc h

v facin ain n a is s a. F vy

hih acin as, h i siz can 10 aic ia-

s w, whas f 50-is w acin a

h i siz can 25 aic ias. racin inic

i innnc in iss is sihy fivin, sinc

h css can i an nay cinci wih

hyynaic i innnc.Insiny, siain ss shw ha h s f

a hihy aciv aic wi n iv ac

fanc as ch as ih xc. In h hihy

aciv cas, n acin as scis is aw

na in h cs. A a cna f h

aics avaia f acin, h-

f, is in was insi h ns

css wh n acin as scis

is sn. Whn h aic wih a w

aciviy is s, f as is avaia

hh h ac, an a aics

a invv in h acin. t qanifyhis cnc, siains hav n

s shw ha a 50-is cas

in aic aciviy cass h

va acin a y a fac f

w h, nin n h

fiizain vciy.

Infain ain f his sy

is cny in s a SINteF

f fi siain as a sin

an iizain f ClC syss.

Fnana insihs ff y hs

s a ssania cniins

wa inifyin an iizin

ian sin aas

acca h vn f his

ian Co2 ca chny. n

The interaction between particle clustersand reacting gas using a particle withhigh reactivity (two images on the left)and low reactivity (two images on theright). In each pair of images, the oneon the left shows the particle volumefraction, and the one on the right showsthe reacting gas concentration.

A particle cluster (left) influences the concentration ofthe reacting gas (right).



Meeting Green BuildingDesign Goals withEngineering Simulation Siain is ivin innvain in HVAC sin f an assy hain Sai Aaia.

By Sharbel Haber, Senior Mechanical Engineer, Balsam Nehme, Mechanical Engineering and Adnan Akhdar, Mechanical Engineer, Dar Al-Handasah, Beirut, Lebanon

Wih h v-incasin ans f ssaina

iins, nins a vin cx an

ivsifi sins c as, s fficincy an

iiz nwa scs. Fi ynaics siains

hav vn a wf an ffciv , viin

fxi sins in incasiny cx an anin

jcs. A ninin fi da A-Hanasah, hs

siains a xnsivy s as an iizain an

vaiain a an ay has in h sin css,sinc siain ss inain f innvaiv

sins an ny-savin ass a wa

casin h va faciiy’s ny css whi ain-

ainin ivin ccan cf.

da A-Hanasah (Shai an pans) has n a

inin fc in h annin, sin an inain

f vn jcs in h mi eas, Afica an Asia

sinc i was fn in 1956. tay, da A-Hanasah is

n f h as ninin an sin fis in h w.

A yica xa f iin f ny fficincy is h

cany’s cn sin f h 31,000-sqa- cn-

vnin cn a pincss Na bin Arahanunivsiy f Wn in riyah, Sai Aaia.

In h

assy

ha f h

cnvnin cn,

an nf ai

isiin (uFAd)

sys was c

wih a cnvnina ciin

ai sy. th assyha ha incs h sa

an sain aa cnsiss f f vs (asn, n,

zzanin an fis f) incnnc via n ai

cnin, wih a vs cci. da A-Hanasah

was cha wih cin h HVAC sys ny

cnsin whi nsin ainc cf: th a

aifw si y h hyi cin sys sh c

h cci zns ny h ins

wh ainnanc cawas a ca. th isiin

f ai sy s n iiz ns

ai ivy in h 24--hih assy ha whi

aviin isanc f h ha saificain fh ai, a y ny-savin as. Fi ynaics

Rendering of the convention center at Princess Noura Bint AbdulRahman University for Women in Riyadh. The center assembly hall was studiedto reduce energy costs while maintaining comfort.

Full-scale 3-D model of the

convention center assembly hall

CONSTRUCTION


20/49



Don’t Rock the Float!Fi–sc inacin aws sins assssiac f wavs n fshwa an ffsh syss.

By Richard Grant, President, Grantec Engineering Consultants, Inc., Halifax, Canada

on a cn jc cissin y envinn

Canaa, ganc eninin Cnsans, Inc. was

as wih vin a wa qaiy niin fa

sin cay a sns f cain nvinna

aa. th fa ays a siia — an s

swha i — a caaaan, hh i is sin

ah han ivn y an nin sais. th a

f h anaysis was iniiz a an ns saiiy

f h fa as w as v scificains f h

in sys an sc. t his a, ganc

s ihysics siain sfwa f ANSYS

in h fi–sc inacin (FSI) y in

h fa an sns n a wi an f wa cnan wav cniins.

bas in h aii vinc f Nva Scia n h

as cas f Canaa, ganc an is nins hav an

xnsiv acn in h sca an fis anaysis

hin css in h fns, ffsh, ain,

anfacin, ny an aqac fis avanc

nw sins an syss. m cny, hwv,

ganc has fn fac h chan f hw cin

hs w anayss ha hav hisicay n f

saay. pvisy, whn h inacin wn fi

an sc was ciica, ganc’s nins n n h ss f h fi ynaics sfwa anay

in h sca anaysis sfwa an vic vsa. In

cnas, ANSYS ffs a sin inain sva f is

s wf an s fis an scs siain

s. Wih is i-fi sv, h ANSYS FSI sin

vi ganc’s a wih a iicina caaiiy f

i-ansin say-sa anaysis wih vin

fin y. usin ANSYS mihysics sfwa,

h ganc nins w hs a vaa h h

sca a f h anaysis an h fi fw sin

wih js a sin .

In h iina fa sin, h a h fa

an sns as a fw scin, which accn f h

fw cns an wav ain n h fa as w as

yancy fcs. thy hn vaa h vn f

w an sn wavs ha s f h sisanc f hh fi fw, js as wih h h f a shi. th

sfwa ica h vica havin an ana

ichin f h fa in sns iffn wav an

cn cniins. th iac fcs f h wavs

caca in h fi siain w aaicay

ass ac h sca accay

sia h ssss an fains n h h.

thh hy hav i ffc n fi fw, h ssss

a ian cas hy a i ssi iiz

h sin f h h a ch hih v han w

ssi wih h.Wih h FSI sin f ANSYS, ganc vaa

h fanc f a wi an f h fis an ass

isiins n iffn fw cniins, an i

Sensor float fluid–structure interaction (FSI) transient responseto current flow

Sensor float bow nosing down due to flow on sensor below float,deck awash

OFFSHORE


22/49www.ansys.c20 ANSYS Avana • © 2011 ANSYS, Inc.

Finite element mesh (top) and contours of stress (bottom) on a halfmodel of the sensor float. The FSI analysis was performed to look atthe effect of a fixed flexible boom on the float.

OFFSHORE

avana f aa cssin acca a

s fficiny han sin a sin-achin

nvinn. In h iniia sis f sins si, hsns was fix h sn f h fa an xn

vicay in h wa. th FSI ss f hs sins

shw h fc x y wa cns n h sns

cin wih h w wav n sh h w f

h fa nwa in fas cns. I was n acica

sv his y siy chanin h h sin,

s h a i a hin cnncin wn h sns

an h fa c h a ansi f h

sns h fa. th hin sns, hwv, ay

incas h cxiy f h siain anaysis.

ganc ass h nw chan f h hin-sns sin y in h fa wih h sns fix

in iffn hin siins sin h is i

n in h sca in f ANSYS mihysics

sfwa. uni h xnsiv aach s f h nn-

hin sins, his nw h vi a siifi

way f FSI anaysis. Wih h is i

n, h a ai wav an cn ain

h sca wih h caina a

invv in cin i a f fi ynaics anaysis. In

h f, ganc ans s a vin sh f

a c FSI anaysis incin f fi ynaics

siain ha wi vaa h in f h hin in

sns hyynaic fcs.

byn is sis f wa qaiy niin fas,

h cany has n xnsiv w wih ninin

siain h ca saf an scay

sn ffsh scs an syss. ganc’s

nins hav as s h ANSYS mhysics sin

assss aviy-as scs (gbSs) s c

ffsh i iin an cin afs f

ics. gbSs y n wih sc h h

sa, which iinas h n f iins in hasas. Cnc gbSs a yicay i wih h

aas ans s hy can fa h si an, nc

in siin, sn y fiin h ans wih wa. th

ganc a s FSI f ANSYS sia wav

ain a gbS incin h ffcs f assiv wavs

f ss — as nwn as n wa — cin v

is .

th cany ivs ha is invsn in ANSYS

mihysics sfwa has a a sinifican aiin

is anayica caaiiis. Cins s ganc

cas f is ac c in fin avanc

ninin sv vy cx s. ANSYS

chny has h anh in h ganc

x ha as i asi ass sin chans

ha js a fw yas a w hav n ch

iffic. n

Waves washing over top of gravity-based structure of offshore platform(waves traveling to the right)



Invented the Supercomputer,

Reinvented the WorkstationThe Cray CX1 brings high-return, low-risk

benefits to design productivity and

efficiency for ANSYS® FLUENT®, ANSYS®

Mechanical™, HFSS™, and more.

Visit the Cray and ANSYSPartner Media Center at

www.cray.com/reinvent

www.cray.com/reinvent

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When ANSYS applications are powered by Platform HPC clusters, your engineeringteam can deliver more designs, more accurately, and faster. Run more complex andaccurate simulations than previously possible to improve product quality and reducetime to market. Empower yourself.

Integrate. Simulate. Dominate.

The leader in

Cluster, Grid and Cloud

Management Software


24/49

Generator andshaft design

Speed sensor design

Transformer design

Electric machineanalysis

Power electronics design


ENERGY: WIND

Energizing the Wind IndustryIncas cxiis qi a sys-v aachin sinin an vaain win ins.

By Ahmad Haidari, Global Industry Director for Process, Energy and Power, ANSYS, Inc.

Win ny jcs an h — f sa insaains vy a win

fas — hav a cn a: c ni ny cs whi ivin iaiiy.

F a sinss sciv, chny cnis viaiiy y infncin

fficin win in sin, anfac, yn an ain. Whh

h aicain is an nsh, ffsh fa-sh insaain, avancns in

scinc an ninin wi cni h insy’s sccss, sciay hh

caaiiis a aynaic sin, aia scinc, sca sin,cnic chanica cn, si scin an fa ay.

Win ins an win ny jcs a cin incasiny

cx, s hy s a nay a vs niaina a fw yas a.

Insaains f vy a win ins in ffsh an fain cnfiains a a

aj chnica achivn. eny canis h sin, insa, an

fficiny an iay a sscs whs win a sans a v

50 s an sjc wav an win ain a iffn ans f aac.

Hisicay, win ny canis hav s ninin siain sfwa

as a in sin, s ny sia a scific sin asc anayz a

cnn. Sccssf aicain f ANSYS sins ans acss h win

ny insy, incin:

• Aerodynamic design: hs cfficin, a sca iniy, ia

as an fai, nis icain, win s fi–sc inacin, i

si, icin, nay ay ansiin, na-wa an fa-fi sis

• Structural design: w an sca iniy/safy, w cnvsin

fficincy, insaain cs an ainnanc, ffsh ans an insaain

• Component design: as, axs an ains, nas, nacs,

s, ivs, s, cnics cin

• Site selection and farm layout: axi jc nia, w

(h a an ava), win as, fai

• Turbine placement: vaia ain, hnss, fsy, i wa ffcs,

iins an sacs

• Electromechanical system

: cica achins, vaia-s cnsyss, ansfs, w cnics, w isiin, sns an

aca sin

• Blade manufacturing

tay’s incas cxiis qi a sys-v aach in sinin

win ins an vaain fanc as n a-w cniins.

Avancs in ninin siain sfwa incasiny a his ssi: F

xa, h ANSYS Wnch nvinn is sin wih caaiiis ha

na in ni win in syss. Is va is fh nhanc hh

avanc sv fncinaiy incin nc ansiin s, avanc

cnac s, ihysics caaiiis, csis s, hih-fanc

cin an h fxiiiy cnnc hi-ay sfwa f win ina anfacin a-asiciy cacains.

enins can f cchanica sys-v anaysis sin Si

sfwa, canic anaysis n cic achins an ivs wih maxw,

win w anaysis via ANSYS CFd, an sss an a anaysis sin ANSYS

mchanica. by vain hih-v inain an avanc caaiiis,



ENERGY: WIND

nins v i a xnin hi nc-siifi

siains inc aiina ais in va win

in sin — nain sa fficincy ains,

ian in an insy in which a in fficincy/

fanc ain can ansa in ch a ciciy

cin, c wni an a jc fi-

aiiy. Sch ais can as iv iaiiy an na win ny jc ain.

Aay, h a any xciin xas f h

xanin s f ninin siain hh

h win ny sy chain. th saa win ny

aicains a sn in his iss f ANSYS

Adva ntage — an ach hihihs h ah f

ANSYS sins. Wih siain caai i is, h

jcs sn ay n hav n as sccssf.

Wih incas an f win ny, nins wi

fac aiina cxiis, sch as vn-a in

as ha wi insa fah ffsh an in hash

nvinns. Win fa si scin s cnin

c is an vc xiiy an nvinna

cncns. Nw wains, ih ws, i-accss

ins, fain afs an qi achins wi v. th insy wi innva h

chans f incas safy an iaiiy, iv

niin, c sys ainnanc an

ay cncns. ANSYS is in ac y viin

hih-fiiy ina, avanc caaiiis ha

sin-hysics ns as w as sys-v an i-

isciinay qins f h win ny insy. n

Offshore installationand certification

Tower design and fluidstructure interaction

Blade design

Rotor sizing

and acoustics

S o m e i m a g e s c o u r t e s y

C E N E R , I M P S A , R E p o w e r S y s t e m s A G , T r a n e I n c . ,

X a n t h u s E n e r g y L t d . a n d i S t o c k p h o t o . c o m / T o r e J o h a n n e s e n .

Software from ANSYS meets the challenges of individual applications as well as of complete systems in the wind energy industry.

Design of floatingoffshore wind turbine

Power distribution analysis Site selection, land and sea Wind farm configuration foroptimal power generation

Wind Farm and Power Distribution



More Powerto YouSiain hs Ina sinn f h w’s hihs- fficincy ann anwin in nas.

By Jon Vaquerizo, Project Manager, and Xabier Calvo, Technical

Manager, Indar Electric, S.L., Beasain Guipuzkoa, Spain

Win w is h w’s fass-win ny sc,

wih 37.5 iawas f insa caaciy a in 2009.

th ga Win eny Cnci xcs his sc

w y 160 cn v h fiv-ya i nin

2014. on isin n is ann an nas

(pmgs), as hy ff hih fficincy an sin fxi-

iiy. Ina ecic, S.l., s v a 2.5 mW pmg

f win w aicains wih h aiis a f

achivin an ncn 97.7 cn v f ffi-

cincy a a a in cnvin chanica cica

ny sin a ann an na. Anh a

was incas fanc an fficincy a aia

as, cas win ins fn n a aia a.

taiina i-an-s hs c n achiv

hs as in a asna an f i. ths, Ina

ai canic fi an fi fw siain

faciia h css.

Ina ecic was fn in 1940 as a anfac

f sa cic s. In 1997, i ca a f

Ina, a Sanish nwa ny cany ha

cny hs a a 15 cn a a sha f

win w cnns. Ina cs a wi an f

na cncs, incin -aiina -f

incin nas (dFIg) an nw pmgs. pmgs n-

ay ff hih fficincy a a a an vn

a aia as, sinc h ann ans iina

h n f winins ha, in n, v

hic sss. pmgs as iina h n f shs,

which cs ssi s an ainnanc

ns.

th Ina sin a fac sva aj chans

in vin is nws pmg. Achivin hih fficincy

was h vachin a, h w a n f h

as ha ha siansy achiv f ia

ain. Cin q, cas y h inacin

wn h ’s ann a-

ns an h ss n h sa c,ha c 0.1 cn f

va q. Va hanics

(tHd) in h ha

w 0.5 cn. F h cin

sys, a anin a was s

ainain an a

w 100 C ass -

fanc f h ans v a

20-ya ifi.

Ina nins s maxw

w-fqncy canic fi

siain sfwa f ANSYS vaa h ffc f iffn

is an an is

n h canic fanc

f h na. W-nwn asic

qains w s v

a iinay na sin.

Indar high-speed permanent magnet generator withair–water cooling option

Time

1250

1000

750

500

250

0

-250

-500

-750

-1000

-1250

0.005 0.01 0.015 0.02 V o l t s

Order of Harmonics

V o l t a g e ( % )

0.7

0.6

0.5

0.4

0.3

0.2

0.1

0.01 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Magnetic flux density level in the

stator (left) identifies areas of highlosses. The generated voltage (upperright) and fast Fourier transform (FFT)(lower right) results for a no-loadcondition are also shown.

Actual value of 1st order is 99.9

ENERGY: WIND



enins fis ca a 2-d an, a, a 3-d f h

na, yin iaiy n anfacin awins c h y an aia is f

an sa ainains an cis. th i s f h

siain was ajs ach h ain s f

h na an h n f s in h ann

an. enins sia h fanc f

h s sin n n-a, f-a an sh-

cici cniins.

th ss f h siain inc h va

wav f c y h na, a asn

ha was ca h sin qin s ha

hanic vs c vaa. th va fas

Fi ansf caaiiy in maxw vis

h va a iffn fqncis, ain i

saihfwa caca h hanic vs f a

aica sin.

th havi f h sin in h vn f a sh

cici was anh ian cnsiain. Sh cicis

ay cas y chanica fai in h na,

insain awn w cnv afncin.

enins si h anic fi na in ach

aa f h ann an in a sh cici, xcin

ns ha h an ha h ih is avi

any aa. gnay whn sinin a pmg, Inanins cnsi a wi an f facs, incin h

cniin f an a, aina s,

swichin fqncy an sh-cici (w-has an

h-has) fanc achiv ia an

havi f h ni ifi f h na cici.

In h f-a siain, nins a h

in qi y Ina fqncy cnvs f havaia swichin fqncis achiv nina q,

hih cn an w sss. th a xain incin

vs in h sa cas f hi ian ffc n

fficincy. thh hih incin vs a i ssi

c h siz f h na, hy as incas in

sss. maxw ss shw h isiin f sss

v h y f h sa, viin ianc f

sin chans iv fficincy. Ina nins

cninay ifi h sin, ain c

sss in h sa c, chanica sss, an sss

ca swichin fqncy whn win wih

fqncy cnvs — a whi achivin h h

sin qins.

250

200

150

100

50

0

-50

-100

-150

-200

-2500.95 1 1.05 1.1 1.15 1.2

C u r r e n t ( % )

Time (s)

Magnet behavior in a three-phase short circuit as predicted by Maxwell

100

50

0

-50

-100

-150

T o r q u e ( % )

0.95 1 1.05 1.1 1.15 1.2

Time (s)

Electromagnetic simulation of the balancing operation and inserting therotor in the stator with a crane

Flow speed and temperatures through the tubes in the air–aircooling system

bcas f h an fi’s hih snh vn whn

h pmg is n ain, Ina nins sia h

css f assin an aancin h , nsin i

c safy accish. thy in h v f

anic fcs na whi insin h , which

a i ssi scify assy s ha c

wihsan hs fcs. th na is aanc y

acin i n sas insn wih accasha c fcs na y iaanc in h .

th canic fi na y h in

his css was sia wih maxw ns

i i n inf wih h cas cayin h

acc sinas.

ENERGY: WIND



Ina nins siansy si h n-

a’s cin sys cas f h inacin wn

cica an ha fanc. th a f h

an ays an ian in is aiiy sis

anizain, s ivns in cin fanc

can incas h an’s aiiy han a sh cici.

oiizain f h cin cici hs iv

fficincy y cin chanica an cin sss.

t iiz h cin cici, nins s ANSYS

FlueNt fi ynaics sfwa f a aisy f fi fw an ha ansf in an an h

na. mshin was a chan cas f h

iffnc in sca wn h sa 5 10 ai

a wn h an sa, wh accacy was

ciica, an h a va 1 nh f h na

an cin sys. t iniiz caina i, 3-d

say-sa anaysis was s in h ajiy f h

sin css, an h siz was c y sin

axia syy an iic cniins. Fi ynaics

ss inc h ca ha ansf cfficins, ai fw

vciy a vy in in h achin cici, ss

f h ai cici hh h na, naa an ha fi, an an win

a. enins s hs ss as a i in

casin a hss y cin vaiains

in cin v h nh f h na.

usin sfwa f ANSYS h Ina asiy

x i aa aa ic sin

vaiains. th canic an fi fw siains

vi fa iansic infain han was avai-

a f hysica sin. Siain vis ss f

any a any in in h caina ain, whi

hysica sin vis ss ny a cains wh i

is acica ca snss. enins w a ia a sin ha a hi scificains n f a

y was i. pvasiv aa anan was

f qicy an asiy y chanin sin aa-

s. ths aas w aa hh hni sin sys, f CAd hh shin

an nay cniins nain f a ss.

th nx s was iin an sin a a-sca

y vify h siain ss an ns h

na’s fncinaiy an if xcancy. tw ys f

sin w f a h s nch: na f-

a hain sin cify na fanc

an aiiy sin vify is iaiiy v i. th

cica an ha asns f h hysica -

y ach vy w wih h siain ss. F

xa, h axi viain f h va sha

icin h as vas was 0.1 cn.

th as fficincy f h nw na was 97.86

cn, hih han h sin a f 97.7 cn, an

nay xacy wha was ic y h siain. th

ain is n f h hihs vs f fficincy f any -

ann an na n h a. Siain a

i ssi achiv his chanin fanc a in

ss han haf h i ha w hav n qi sin

cnvnina i-an-s hs. th siain -

icins ca w wih hysica sin, viin

cnfinc ha Ina can s siain iiz is

cs iv hih fanc n h sanin cniins. n

Fluid dynamics results show air flow variations over the length of the

generator using three different cooling system options. The optionsinvolve modifying the geometry of the slot, windings and magnets.

10

9

8

7

6

5

4

3

2

1

0

A i r F l o w ( % )

Generator Length

The difference between the simulated and measured air flow ratesacross the length of the generator was a maximum of 1.32 percent. Themaximum difference in calculated versus measured temperatures wasonly +/– 3 degrees C for the stator and +/– 3 degrees C for the rotor

magnets. Software from ANSYS provided very good accuracy, which isessential for these applications and for Indar engineers to trust the newdesign variations.

Generator Axial Length

Generator Axial Length

T e m p e r a t u r e

Simulated

Measured

Simulated

Measured

Max. Deviation = 1.32%

Mid. Deviation = 0.5%

Option 3

Option 2

Option 1

8.0

7.5

7.0

6.5

6.0

5.5

5.0

4.5

4.0

A i r F l o w ( % )

ENERGY: WIND


29/49www.ansys.c

ENERGY: WIND

ANSYS Avana • V V, Iss 1, 2011 27

divn y h n chan h w nain ny

ix, h s f win ins is incasin sinificany

an h w. th ga Win eny Cnci

(gWeC) ics h a a f win ins wi

w f 94 gW in 2007 296 gW f a insa

caaciy y 2012. dnin n h incas in ciciy

an, win w c sy 11.5 cn

12.3 cn f a ciciy an in 2020,

accin gWeC, an wn 18.8 cn an

21.8 cn in 2030.

Hwv, h a f an-as insaains is n

as a as i c . S f his is xain y

annin cnsiains: p n wan hav

win ins si na hi hs. tyica jcins

Where the Wind Blowseninin siain ays a in in h s w fwin fas y icin h s avaia cains.

By Ian Jones, ANSYS Fellow, and Christiane Montavon, Senior Technical Services Professional, ANSYS, Inc.,

and Daniel Cabezón, Wind Specialist, National Renewable Energy Centre (CENER), Sarriguren, Spain

inc visa insin, nis, h ffc n na, an

isancs cas y cnscin an ain.

Fh, win fas affc aa sinas, a

cniin ha is fcin ins away f xs

his cains ha a f sih f annna

insaains. Cnsqny, win fa vs a

cnsiin sis n ncssaiy ia f win w

nain: cains away f his, in ins wh

h fw can cica an nc can hih, an

in haviy fs aas. pacin ins in sch

cnsain sis ans ha wa ffcs can hav a

sinifican iac n h fanc f wnsa

ins, cin w cin an cnsiay

incasin fai ain.

Black Law siteCourtesy Siemens press.


30/49www.ansys.c

ENERGY: WIND

ANSYS Avana • © 2011 ANSYS, Inc.28

t vc h sha f an sis, ins is

win in ffsh in sis, wh w ain

nc is xc s in c as f wacvy. t iniiz wa sss an iiz ny

cin, i is via iv cnfinc in h aiiy

f s accay ca hs ffcs.

N a h cain, h is cnsia

canc invs in xnsiv win fas wih a

aan n n invsn (roI). usin cn

icin s, vs a na vi

sfficiny ia sias f jc win w

f chanin sis, faiin saisfy invsn ciia.

dvs a nw in f ways a win w

siain ia f nn-ia sis.

tin as s wihsan sinifican sssscas y sn ain an win ffin. th is

cnsia ins in xnin in if an

cin aina css. unsanin h win

i an nc vs nas a iaiiy in

assssin sia in ys. un h Innaina

ecchnica Cissin (IeC) (h cniz

innaina y f sanas vn aciviis)

in cassificain sys, h chic f in y is

in y h vs f nc innsiy iy

xinc a h si. F xa a Cass IIIb win

in, sin f w win s (7.5 /s a h

hih) an w nc innsiy (16 cn), wi

sjc w as han a Cass IA IIA win in.

Black Law Wind Farm A yica win fa xa is bac law, in cna

Scan, a y Scishpw rnwas.

th si cnains 54 2.3 mW Sins ins an

ccis a f n-cas ca si. In Janay

2006, i was h as ain win fa in h

uni kin.

Wih aivy sa hih vaiains acss h

win fa (axiay 170 s), h cx-

iy n his si is ss a ahy an

asscia wih sinifican fsy an wa

ffcs. Scishpw rnwas an ANSYS

hav cai a caaiv sy n his win

fa nsan h inacins wn h

ins, h ain an h fsy, assss hw

w fi ynaics w f f his si, an

s h ssns an in vin nw sis.

A caisn f ANSYS ss an asns

f h anna ava w f h bac law si

shws ha h sfwa ics fanc w.

th ss as inica which ins a n-

fin, f xa, cas f hi cain

in h fs.

“This type of simulation is useful

in highlighting features not picked

up in other engineering models

a n d i n b r i n g i n g t o l i g h t

the circumstances under which

standard models fail to capture

the detail required. Therefore, it

has a key role to play in managing

the risks associated with modeling

complex wind farms.”– Callum Strachan, ScottishPower RenewablesComparison of average wind power on Black Law, taken

from operational data and ANSYS simulations, shows closeagreement — giving ScottishPower Renewables increasedconfidence in using fluid dynamics simulation for future siteapplication.

N o r m a l i z e d P o w e r

Turbine Number (Highest power on left)

Map of Black Law Ordinance Survey® Crown Copyright 2008,license number 100048580


31/49



Second Wind Avanc nc s a iiz win in sacin.

By Thomas Hahm, Fluid & Energy Engineering GmbH & Co. KG,

Hamburg, Germany

Wih h ga Win eny Cnci jcin ha win

w insaains wi w 409 iawas in 2014, h

an f an cci y win fas is cin a

sis cncn. th iss is aay ciica in gany

cas f ns ain an h cny’s ashi

in yin win w. tyicay h a is na

as ch w as ssi a h ws cs f a

ivn win fa si. b h a awacs sacin

win ins cs h, incin w w

an wa ffcs.

Fi & eny eninin (F2e) gH & C. kg is

inin h s f avanc nc s sch

as a y siain (leS) incas h accacy

wih which ins can si wihin a win fa. th

n s wi h aiiy na ny f

a ivn v f an.

th wa f a in has sinifican ffcs — incin

c w an sh in if — n any

in in is ah. exacin ny f incin win

cass a ss in h inic ny an vciy f h win

in h wa f a in. this ny is cv v is-

anc as h wa xchans ny wih h snin

win. tnc c in h wa f ins an

nc c y ain fas sch as fss

his can hav a ssania iac n in if. thffcs f nc can vay wih h fw an an

incinain f h incin win. F xa, n f h

s aain scnais is whn n haf f a

xincs nc f an win in an h

h haf is xs nis fw.

Atmospheric flow over the Bolund peninsula (Denmark) with wind

direction from the escarpment on the west side. The red colorindicates high wind speeds, and blue indicates low speeds.

Wind field behind an ENERCON E-66 wind turbine with hub height of65 meters. The blue color indicates high wind speeds, and whiteindicates low speeds.

Meandering wake behind an ENERCON E-66 wind turbine. Bluerepresents high wind speed, and white represents low speed.

ENERGY: WIND

I m a g e © i

S t o c k p h o t o . c o m / c h r o m a t i k a



In gany, an anizains an ay ah-

iis qi an assssn f vy nw win fa jc

ns ha nc as na y ain anwin in was a wihin acca sin iis.

tain an win in was s cnsi

h cas hy hav aiiv ffcs n -

nc. tyicay, h aach cin hs as is

s sana iica fas sia ain-

na an wa-na nc innsiy an

s a n hy sia h ain n

h as.

Hwv, h accacy f hs iica cacains

can ii cas hy n inca h aca

y f h s an ain. th s is ha h

cacains n haviy caia csaf win fa sins. ths iica s shw

ha win ins yicay s sac a a isanc

f a f ias f ach h. rqi

sacin can vn a if ain-na

nc is a aj fac.

dvs f win fas a anin

acca hs f cacain h nc innsiy

na y was an ains s ha hy can c

ny f a ivn ac f an. F2e has n

sin caina fi ynaics (CFd) v h as

ca ass his ian iss. th cany’s

nins nay hav ha i ifficy in inin

h win vciy in h wa f a in, cacain

h nc innsiy is ch chanin.

Cnvnina ryns-ava Navi–Ss

(rANS) s c h caina i qi

sia n fws y i-avain h vciy

fi, ss, nsiy an a v i. this

aach iinas nc fcains an as i

ssi n fw in a asna i n

s cs. rANS hs a ffciv a -

icin h va an say-sa havi f a win

fa; hwv, hi accacy sffs in in nsayn fws ha a yicay fn in win fas.

ov h as h yas, F2e has s h leS

nc wih vy siiv ss. I nicay

svs h a nc scas an s h

sa scas vi acca ansin sins f

h fwfi. ms cny, F2e nins s ANSYS

FlueNt sfwa h f y f w

eNerCoN e-66 win ins wih 66 s sin

h leS chniq. th fi ynaics ss w

vaia wih aa cc in an aca win fa sin

asnic ans. Fi ynaics accay

ic h vciy f h incin win an wih

nc innsiy a h wnwin in v h

wih f h wa.Fi ynaics i a j f icin h vaia-

in in h vciy v a i f 300 scns, a fi

ha can s caca nc innsiy an h

aynaic as ha nc cas. Qic hi-

zna shifs f h wa f n si anh a

ca n a 25 scn i sca. Anh ciica

fac in achivin his v f accacy was h acca

in f h incin win fi an, aicay, h

vaiain in is win icin an h win sha.

Fi ynaics an leS chniqs f ANSYS can

s caia an ay iv h accacy f

iica cacains ha a cny s cacaa as n wa cniins. Cacain f a

as sh a i ssi ssaniay incas

h an f ny ha can na y nw

win fas an incas h safy an h ifsan f

win ins. nModel of a wind turbine used for computational fluiddynamics simulation

Simulation of local turbulence intensity (blue line) compared tomeasurements (red dots) across width of wake

0.45

0.4

0.35

0.3

0.25

0.2

0.15

0.1

0.05

0

T I [ - ]

Width of Wake [m]

-150 -125 -100 -75 -50 -25 0 25 50 75 100 125 150

Measured (green line) and calculated (blue line) values for velocitymagnitude at hub height in center of wake over 180 seconds

10

9

8

7

6

5

4

3

2

1

0

V e l o c i t y [ m / s ]

I [s]

100 120 140 160 180 200 220 240 260 280

ua Snic 2-d leS Siain 2-d

ENERGY: WIND


34/49


35/49



AEROSPACE

sin h vhic a a a w s f safy

an saiiy wih sain. Sa icin can s a

iffic , vn f shisica CFd s.

Hwv, wih cs s f ANSYS xs,

tafia v a ai ninin aach

ncssay ain acca icins, incin h

s f a via a (Vbm) ha in h

fi ynaics sfwa an ca aiina caai-

iis h tansiin’s . Af yin

h sciay Vbm , h a sha h win an

Production prototype design showing airflow pathlines over the vehicle body. The VBM plug-in to ANSYS FLUENT enabled

Terrafugia engineers to model the vehicle’s propeller under near-stall conditions, which helped to ensure the safety of theaircraft while in flight.

h ain f h y as n ach h wih

an cn-f-aviy qins f h vhic.

th nw sin ivs h h in-ai an n-a

fanc f h tansiin as w as nss ha h

vhic ns isf f-sca anfacin. tafia’s

a fn ha siain sfwa f ANSYS was

ciica in avancin h h cin y

sa wih a hih f cnfinc in hi sin.

th cany cis ANSYS s f hin in

hi c a s qicy. n

Windows®. Life without Walls™.HP recommends Windows 7.

© 2010 Hewlett-Packard Development Company, L.P. The Intel Logo, Xeon and Xeon Inside are trademarks of Intel Corporation

in the U.S. and/or other countries. Microsoft and Windows are U.S. registered trademarks of Microsoft Corporation.

with theHP Z800 Workstation

Powering

Visit www.hp.com/go/ansys for more information

with Intel® Xeon® processor



Glass JawSiain hs sv cia jawsin in h la Han Ci.

By Alessandro Bertarelli and Alessandro Dallocchio, Engineering Department, Mechanical

and Material Engineering Group, European Organization for Nuclear Research, Geneva, Switzerland

th la Han Ci (lHC) a h ean

oanizain f Nca rsach (Cnsi eén

a rchch Ncéai, CerN) is h w’s as

an s wf aic acca. tw as f

saic aics ca hans — ih ns

a ins — av in si icins insi h cicaacca, ainin ny wih vy a. th lHC’s

cias sca away aics ha hav n sihy

ff ac vn aa h hihy snsiiv s-

cncin ans. b h cias n a

wihsan an ha ih n h wih a

ssania facin f h a isf — cnsiin ha

h a c as 1 n f c.

Whn sachs s h lHC cia y

wih sva shs a iffn a innsiis, hy

iscv ha h can–can cia jaw nicy

sviv h iac, is a s sff a

ann fcin sn nh h cia

f acin. CerN saff iiay s w n-

san wha cas h an hw cc i.

Si na gnva, Swizan, h lHC is in

xi y hysiciss sy h sas nwn

aics ha a iin cs f a hins. th a

ss h lHC -ca cniins ha xis js af

h i an y ciin w as ha-n a vy hih

ny. th a f sy is h His sn, a hiz n y iscv aic ha ay h xain h

asss f vais saic aics. th lHC is in

s s a a ha is iv a

96 cn f h ass f h nivs. Sciniss h

iscv h iffncs wn a an ania

h in nsanin why s i ania is f in

h nivs vn hh h i an is iv hav

c qa ans f a an ania.

th lHC ss a s ny f 360 mJ a.

this is w h s f ani av wha h

n cis can han. CerN’s ci is cnain

in an nn cica nn, 50 s 175 s

, wih a cicfnc f 27 is. th ci

nn cnains w ajacn aa a is, an

ach cnains a n a ha as in si

icins an h in. th aa as insc

a f ins, fcin h ci wih ach h.

S 1,232 i ans h as n a cica

ah, an an aiina 392 qa ans fcs

h as incas h chancs f cisin a h in-

scin ins.

th s ciica ns f h cias a h

jaws, which a a f can–can csis,which ncic h a an a sin c any

say aics ha saa f h a. th jaws a

s y a az sanwich sc ncassin

h ain s a, cin is an infac a.

SCIENTIFIC EQUIPMENT

Collimator cross section

5mm

Finite element model of collimator

3-D contact elements

with friction

SOLID45 – eight-node brick elementwith initial strainto simulate springpreload (three bar)

Cooling pipes – internalpressure 15 bar



th cia is a is whn h a is v f

n acca in anh. this ns n

fqny cas h a is acca axiny y vin i hh a faiy f ssivy

wf accas. kic ans a s nc

h a f is cn in an injc i in h nw

in. If h is an in h cnfiain f h ic

ans, h a ih s ch

in n icin. th cia s a wih-

san accins sch as an injcin ha ay cas

3 .2 x 10 13 ns ach wi h an ny f

450 iacnv (gV) hi h cia jaws. An

cn v is h inic ny ain y an cn

whn i accas hh an cic nia iffncf 1 v.

t vaia h cia sin, nins cai

ss sin anh CerN acca n a fy

aina y f a cia. th jaws w

si a sis f iacs a 450 gV v 7.2 μs.

masns f n jaw assis an a

ss va a ann fain f h a

s f v 300 μ. CerN sachs hiz

ha his fain was cas y hay inc

viains vy fas hain. evn whn a sc

is f xan, whn h hain css is fas han

h yica sss axain i, aia inia vns

f ha xansin, casin sss wavs. Siain

was cay qi nsan h .

Aicains wih sch a chanica cxiy

a yicay ass wih xici ynaics cs.

b f his cas, xici anaysis w hav n vy

awwa cas f h n f ihysics inain

an h cxiy f h chanica sc, which

incs iffn aias ha a h h wih

cas. Sinc h ssss a w w h asic

s, h a n shc wavs ha w qi an

xici ynaics c. th c insa

sia sin an iici fini n fwin

h s f h-asiciy. ANSYS mchanica iici

fini n anaysis sfwa vis ihysics

caaiiis ha ina ha an chanica

anaysis. In his aicain, inain incass

accacy an cs h an f i qi

a h . ANSYS mchanica as ffs c-

hnsiv n chny, an xnsiv iay f

aia s, a cnac cin f assis

an wf sv caaiiis.

th ciain c was as a cana

a, siy s a is s. th ny isi-

in ai h cia was in wih

FlukA, a aic hysics mn Ca siain

aca. th a ny was inc h fini

n in h f f a 3-d a sin h HgeN

can. tansin ha siain was s

caca h a isiin as a fncin f

i. rsachs f sca ynaic anaysis

y ayin h a isiin as na ain

a iffn i ss. easasic anaysis s h

iina inaic hanin f aic

cnns. th a v scia aihs

ay a a isiin chanin in i an

sac a iffn sss f h asic–asic anaysis.

th inain i s f 0.1 μs was as n h

Flexural vibrations

Temperature distribution incollimator, where blue is minimumand red is maximum

Residual displacement based on physical measurements (left) and simulation (right) matched very closely.

100 200 300 400 500 600 700 800 900 1000

0

-0.05

-0.1

-0.15

-0.2

-0.25

-0.3

T r a n s v e r s e d e f o r m a t i o n ( m m )

Jaw Longitudinal Position (mm)

CFC assy CFC assy Graphite bloc Graphite support





iinay anayica siain avi nica

ain. Finay, saic anaysis vaa sia asic

fain.

th siain ss inc h a is

hh h sc, ain i ssi s si

fas ic asicizain. th axi sss is

w av h ina ii f c, s h ha

shc na asic sains, as hiz y h

sachs. th as sia asic sains f 0.12

cn w sn in h 3– hic c a. ths

sains a ccnic wih sc h na axis

f h a s, ain ann fcin

away f h a axis.

th siain ss ach h hysica as-

ns aay csy. Whn cain h hysica

asns in h in ah h siain

icins in h cn , h ansvs sia

fcin f 350 μ ic y h siain csy

ach h as va f 300 μ. th ynaic

sns ic y h siain as ca w

wih as d vi asns. th

siains a hih in ani han h hysica

asns cas h siains n a

ain in accn.

th sy a, a f sni an jni

nins, fws, an sns, s h vaia

siain as h iay sv h .

CerN sachs vaa a n f iffn

is an aias in hi iac n h

siain f h s sc. usin hs ss,

hy ci ify h jaw assy sis sin y

chanin h hin a aia f oFe-c h

hih yi snh gic® aia. gic is a faiy

f c-as a aix csi ays ix

iaiy wih ain xi caic aics. th

aiin f sa ans f ain xi ay

incass h c’s sisanc ha sfninan nhancs va a snh.

An a f h sis jaw assy

incin C-Ni is an gic s a an hin

as shw ha fcin was c f 300 μ

16 μ, which was wihin acca iis. this

fi was cnfi y xina ss cai

n a scn y f h cia. th s f

siain in his aicain a i ssi aiy

ians h an v an acca sin

whi iinain h n i aiina -

ys, xcin h fina sin. ANSYS mchanicasfwa ay a y y viin h f an f

hysics caaiiis n accay sia a vy

cx . n

Simulation predictions correlate well with measured deflection.

Deflection was substantially reduced in the new design.

Measured displacement - 1 batch

FEM - scaled to 1 batch

1dof damped

0.E+00 1.E-02 2.E-02 3.E-02 4.E-02 5.E-02 6.E-02 7.E-02

2.50E-04

2.25E-04

2.00E-04

1.75E-04

1.50E-04

1.25E-04

1.00e-04

7.50E-05

5.00E-05

2.50E-05

0.00E+00

Time [s]

D i s p l a c e m e n t [ m ]

Measured displacement - 2 batches

1dof - no damping


40/49



ANALYSIS TOOLS

a, wih h as in h s ian. A

hysics-as as can vi ins ha w

hwis n xina sin ain. th s

fas hysics-as iinay was s y

pfss Jhn Nwan f uC by. Sch a

has n in in Si sfwa f ANSYS

aw inain f any ian facs in

ay sin.

Cha an ischa cyc ss can

an wih cncnain fis in ischa. F

his infain, iizain f h iniia csiin f

cys in h c can f. Whn his sy

was f, ss shw ha a hih iniia

cncnain f cys as as swha wcnciviy in h saa a ch hih cnc-

iviy in h csi cah, wh his is xy

ian. by in cncnain fis n

iffn as, ay sins can in

whn h iiin cn ccs scify h -

a an ha h sys ns ainain avi

achin iiin cn. In aiin, ay ni is a

sn fncin f a, an ay ni is

n wih hih ain a. this can

cnfi f a hysics-as cchisy ,

i sns anh : Hih a

ins safy cncns, shns ay if, an csanh iizain iss in ay sin.

Sys-v sin nins win a h

ac v hav a iffn s f qins. tyicay,

hs nins cann aff sia as any ais

as nins win a h c v can; hy as hav

a iffn s f siain as. enins sin

caina fi ynaics (CFd) f ay ha

anan a ins in ainainin hsi a an, cin ss an

ainainin a nifiy. Fi ynaics has

n wiy s ic fw an ha ansf in any

insis, an i ais w ay ha ana-

n. by sin h ANSYS Wnch af wih

ANSYS CFd sfwa, a c ay ha–fi

ynaics anaysis, incin iizain, can n

niy wihin h sa nvinn.

Whi fi ynaics siain can iv ai

ha infain a ay ha anan

syss, i is i cnsin f any ansin

siains n iffn iv cycs. m cin chniqs xis f xacin a f

CFd ss, an h xac , ca Fs nw

, ivs h sa sin as ha f h f

CFd — i ns ch fas ca wih

CFd. th cin css is han a-

aicay y Si sfwa sin CFd ss as

ins. this css ns h f siains ha

w hwis hav n iacica, sch as ay

ha cn sys anaysis.

F cica nins, h iay cncn is h

cic fanc f h ay ah han h ha

Battery charge and discharge cycle results from JohnNewman’s electrochemistry model

Concentration profiles during galvanostatic discharge

Fluid flow solution for the 16-battery cell module

A complete battery thermal–fluid dynamics analysis includingoptimization can be done using ANSYS FLUENT softwareentirely within the ANSYS Workbench environment.

C e l l P o t e n t i a l ( V )

Time (hr)

C u r r e n t ( A )

c ( m o l / m ^ 3 )

20

15

10

5

0

-5

-10

-15

-20

2600

2400

2200

2000

1800

1600

1400

4.3

4.1

3.9

3.7

3.5

3.3

3.1

2.90 1 2 3 4 5

0 0.2 0.4 0.6 0.8 1

t = 1 min

t = 5 min

t = 10 min

t = 40 min

X

Automotive battery module with 16 cells



Comparison of CFD results with Foster network results. Inthis case, the Foster network model took 20 seconds to run,whereas traditional CFD required a few hours.

0 500 1000 1500 2000

299

298

297

296

295

Time (Sec)

C e l l A v e r a g e T e m p e r a t u r e ( K )

ANSYS FLUENT Cell 3

ANSYS FLUENT Cell 10

ANSYS FLUENT Cell 15

Foster Network Cell 3



fanc. An acca an y si--s ha

ha cs wih a ay cic cici is

qi. this can accish hh VHdl-AmS,an Ieee® sana hawa siain ana

s y Si.

dsinin ais f HeV/eV invvs any

chans, an sins fcsin n iffn ascs

hav iffn qins. th nfi wih ANSYS

sfwa is ha i ffs s anin f c-v

cchisy sys-v ha anan. n

ReferenceHu, X.; Lin, S.; Stanton, S.; Lian, W. A Novel Thermal Model for HEV/EVBattery Modeling Based on CFD Calculation , Proceedings of IEEE EnergyConversion Congress and Expo, Atlanta, U.S.A., September 12–16, 2010.

Hu, X.; Lin, S.; Stanton, S.; Lian, W. A State Space Thermal Model for HEV/ EV Battery Modeling. SAE , 2011, 01-1364.

Fuller, T.F.; Doyle, M.; Newman, J. Simulation and Optimization of the DualLithium Ion Insertion Cell. Journal of Electrochem. Soc., 1994, vol. 141,pp. 1–110.

ANALYSIS TOOLS


43/49

Microbubbles KeepGreen Energy Blooming Aa-iv if cin sa sn s f fw siain.

By William B. Zimmerman, Professor of Chemical and Biological Engineering, University of Sheffield, U.K.

th w facs a sha f fssi

fs; a h sa i, ffs a

in a c can ixi

(Co2 ) issins. pcin f i-

fs f cain ins f aa ffs

a nia sin h s.

li h hsynhic aniss,

aa ca Co2 an snih an

hn cnv h ns xyn

an h ny qi f hi if

cycs. th aa iass isf incs ins, ca-

hyas an fay acis. I is hs fay acis — naais — ha ff a nia as a nwa fsc

f finis, wh hy can ansf in f

w asin is nins.

Hwv, s csss anfac aa-

iv ifs a xnsiv cciay

via — sinc h ws cin ics in h uni

Sas a cny in h $20 $30 an an.

tw f h as css invv a h caia xnss

qi i h iacs (cin aa n a

a sca) an h ny qi a h.

t c hs css, n f h

vin aicains in s-

i is inc Co2-ich fssi f

xhas ass in h iac as

ics. An h s

acin his is a sach

a f h chica ninin

an a h univsiy f

Shffi in h u.k. th

has a a aj s fwa in

cin h cs f cin aa ifs f

xhas ass y cain ics ha a a20 icns in ia. th aj avana f sa

s is ha hy hav a hih sfac-aa--

v ai. bcas hs 20 icn ics a

50 is sa han cnvnina 1 ii fin

s, hy hav a csniny hih sfac aa

ni v. ths, hy vi 50 is a ass

ansf as, which c niay ansa in a

nf hih yi in aa if cin [1].

th y cin s his sa is a niq

scia sin v sin ANSYS FlueNt fi

ynaics sfwa (a f a fi ynaics Acaic

pc n f ANSYS) vaa h iniiasin cnc an f aaic sis sc

aia nzz wih an fw as ha vi h

ih ain cniins. th aiina h f

cin s f acs has n fc h as

Left: A conventional gas diffuser producesrelatively large bubbles. Right: A gas diffuserwith the fluid oscillator shows tremendousreduction in bubble size.

Schematic representation of fluidic oscillator

Cover plateshowntransparent

Flow from high-pressure port X2 to low-pressure port X1

Fluid oscillator driving microbubble generation system

I m a g e © i

S t o c k p h o t o . c o m / k a m i l .


ACADEMIC

Growingsmall airbubbles

Bubblesblownaway

Air flow pulse

Air supplyFeedbackloop

Fluidicdiverteramplifier

Water tank

Air bleedingto atmosphere

A

Waterflowpulse

B



n ss hh a aic f vy sa hs. Whn

finay saa f h nzz, hwv, h hasa ia ha is fn any is a han h h,

cas is saain is cn y h sfac nsin

f h wa. th y ia f h Shffi a’s ic-

nain h was ii wh

i sin an scia sy as h

fain hs. gwh is ina a h n f ach

s f as. bs a hn v f h nzz

sin a s f wa ha anas wih h as ss

s h wh f nw s can in in h nx sci-

ain i. usin his h, n can ach h

siz yicay f f say as win.

In h scia sin [2,3], say as fw issi h scia in. th ain fw sa hn

xis n f h w channs nin n h

acin ai y fw hh a iicina cn .

th fw xis hh h chann, casin

a cas in ss a h cn nzz. th

cn nzz hn aws as hh h fac

f h w cn nzz, wh h ss is

hih. Af h fw in h fac ains

n, h fw xiin h cn nzz

cass h ain j — cas f incn ( aifi-

cain) ffcs — iv h w chann.

Af a ay n f h fac fw ainn in h si icin, h ain j is

iv ac h , sin in a iic

swichin css. th fqncy f h sciain is

cn iaiy y h nh f h fac

an h as sy fw a.

Shffi’s a f siain f an ay

scia y wih ANSYS s. rsachs

sh h 3-d y wih 70,000 aha cs

an s h naizain (rNg) -ε

han nc a w ryns ns. th ss

ach h fanc aas f h ay -

y, s h a c s fi fw siain

iv h vic’s cnaiiy, incin via sin

f is wih iffn cn nzz wihs an

iffn in fw nay cniins. th sachs

ca h ss f h iffn sin anaivs

an hn sc h fina f-f-cnc sin.

Wih h n 50-f incas in ass ansf a

aff y his scia sin, Co2 issa is acc-

a in h iac an sh nhanc aa wh

a y a fac f 10. th ics fficiny

si h xyn ha aa i in hsynhsis,

hs iin ch hih aa nsiis in h wa.

ths ivns sh ssaniay c h

caia an ain xns qi f a ivn v

f if cin, as aa can wn

qicy in a sa an f sac.

byn isayin a scha wh a,

h xins shw an 18 cn cin in h

ny qi f cin ca

cnvnina fin s. rsachs ai his,

in a, c ficin sss h sciayfw. th a hs ics ha ninin siain

wi ay an vn a in h cin sin f a

ccia-sca iac, whn i wi c ciica

iiz a cnns f h sin iniiz

caia xnss. n

References[1] Zimmerman, W.B.; Zandi, M.; Bandalusena, H.C.H.; Tesař, V.; Gilmour,

D.J.; Ying, K. Pilot Scales Studies of Microbubble Mediated Airlift LoopBioreactor Growth of Microalgae Dunaliella Salina. Applied Energy ,submitted in 2010.

[2] Tesař, V.; Bandalusena, H.C.H. Bistable Diverter Valve in Microfluidics.

Experiments in Fluids , 2010; doi:10.1007/s00348-010-0983-0.

[3] Zimmerman, W.B.; Hewakandamby, B.N.; Tesař, V.; Bandulasena,H.C.H.; Omotowa, O.A. On the Design and Simulation of an AirliftLoop Bioreactor with Microbubble Generation by Fluidic Oscillation.Food and Bioproducts Processing , 2009; Vol. 97, No. 3, pp. 215–227.

Top view of velocity magnitude contours on midplane of oscillatorshowing supplied gas flow directed into the upper outlet channel andno flow through the two teardrop-shaped control nozzles

3-D view of gas flow pathlines released from a plane cut in the zdirection and colored by velocity magnitude. The cusped splinter noseat the junction of the outlet channels generates an internal feedbackloop that initially helps to direct the main flow to the upper outlet.

Pathlines later in the cycle showing that flow through the control nozzleshas overcome internal feedback and the main jet is being switched tothe lower outlet channel

ACADEMIC



ACADEMIC

Reforming a Fuel CellModeling ProcessCin fw siain wih cx chisy s insa ni fn anayzin ain- ny syss.

By Robert J. Kee, George R. Brown Distinguished Professor of Engineering, Colorado School of Mines, Golden, U.S.A.

Sinc is asic inci was fis

nsa in h ay ninnh

cny, f c chny has

vv in any iffn vaiains.

th nyin chanis cn

a f cs is cnvsin f

chica ny in ciciy y

ans f fin h f in

hyn an wih h ssqn

cchica xiain f hyn

in wa. dnin n h y f

f c an is aicain, h f

can ih hycans — sch

as naa as, an han

— havi iqis, i is

j f . th y avanas f f

cs v syss ha n fssi

fs inc fw vin as an

va c an issins.

S f h chans in vin

f cs f wisa s

a h hih cs f caays h

faicain aias, h ifficy f

hyn sa, an vy cx

chisy.

Si xi f cs (SoFCs) inaica hav n h sjc f

ch sach in cn cas:

thy hav h aiiy f any

iffn fs, an hi hih ain

as ff h

si nfi f sin h

xhas ha ny.

Wih s f h

u.S. offic f Nava

rsach, a a f

h Ca Sch f

mins (CSm) has n

win wih ANSYS

sia in s

h chisy,

cchisy an

fi chanics f an

SoFC sac sys.

Sch a sys — f

xa, an axiiay

w ni (Apu) s

y a Navy vss —

cny ciss a

sh-ansin ha incs

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