D2 27 Manual of wave instrumentation survey of laboratories · D2.27 Manual of Wave instrumentation – Survey of laboratories Rev. [Revision Number, e.g. 01], 27-Mar-2015 Page 1

WP2: Marine Energy System Testing - Standardisation and Best

Practice

Deliverable 2.27

Manual of Wave instrumentation –

Survey of laboratories

Marine Renewables Infrastructure Network

Status: Final

Version: [Type version number, e.g. 01]

Date: 27-Mar-2015

EC FP7 Capacities: Research Infrastructures

Grant Agreement No. 262552, MARINET

D2.27Manual of Wave instrumentation – Survey of laboratories

Rev. [Revision Number, e.g. 01], 27-Mar-2015

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ABOUTMARINETMARINET (Marine Renewables Infrastructure Network for emerging Energy Technologies) is an EC-funded network

of research centres and organisations that are working together to accelerate the development of marine renewable

energy - wave, tidal & offshore-wind. The initiative is funded through the EC's Seventh Framework Programme (FP7)

and runs for four years until 2015. The network of 29 partners with 42 specialist marine research facilities is spread

across 11 EU countries and 1 International Cooperation Partner Country (Brazil).

MARINET offers periods of free-of-charge access to test facilities at a range of world-class research centres.

Companies and research groups can avail of this Transnational Access (TA) to test devices at any scale in areas such

as wave energy, tidal energy, offshore-wind energy and environmental data or to conduct tests on cross-cutting

areas such as power take-off systems, grid integration, materials or moorings. In total, over 700 weeks of access is

available to an estimated 300 projects and 800 external users, with at least four calls for access applications over the

4-year initiative.

MARINET partners are also working to implement common standards for testing in order to streamline the

development process, conducting research to improve testing capabilities across the network, providing training at

various facilities in the network in order to enhance personnel expertise and organising industry networking events

in order to facilitate partnerships and knowledge exchange.

The initiative consists of five main Work Package focus areas: Management & Administration, Standardisation & Best

Practice, Transnational Access & Networking, Research, Training & Dissemination. The aim is to streamline the

capabilities of test infrastructures in order to enhance their impact and accelerate the commercialisation of marine

renewable energy. See www.fp7-marinet.eu for more details.

Partners

Ireland University College Cork, HMRC (UCC_HMRC)

Coordinator

Sustainable Energy Authority of Ireland (SEAI_OEDU)

Denmark Aalborg Universitet (AAU)

Danmarks Tekniske Universitet (RISOE)

France Ecole Centrale de Nantes (ECN)

Institut Français de Recherche Pour l'Exploitation de

la Mer (IFREMER)

United Kingdom National Renewable Energy Centre Ltd. (NAREC)

The University of Exeter (UNEXE)

European Marine Energy Centre Ltd. (EMEC)

University of Strathclyde (UNI_STRATH)

The University of Edinburgh (UEDIN)

Queen’s University Belfast (QUB)

Plymouth University(PU)

Spain Ente Vasco de la Energía (EVE)

Tecnalia Research & Innovation Foundation

(TECNALIA)

Belgium 1-Tech (1_TECH)

Netherlands Stichting Tidal Testing Centre (TTC)

Stichting Energieonderzoek Centrum Nederland

(ECNeth)

Germany Fraunhofer-Gesellschaft Zur Foerderung Der

Angewandten Forschung E.V (Fh_IWES)

Gottfried Wilhelm Leibniz Universität Hannover (LUH)

Universitaet Stuttgart (USTUTT)

Portugal Wave Energy Centre – Centro de Energia das Ondas

(WavEC)

Italy Università degli Studi di Firenze (UNIFI-CRIACIV)

Università degli Studi di Firenze (UNIFI-PIN)

Università degli Studi della Tuscia (UNI_TUS)

Consiglio Nazionale delle Ricerche (CNR-INSEAN)

Brazil Instituto de Pesquisas Tecnológicas do Estado de São

Paulo S.A. (IPT)

Norway Sintef Energi AS (SINTEF)

Norges Teknisk-Naturvitenskapelige Universitet

(NTNU)

D2.27 Manual of Wave instrumentation – Survey of laboratories


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DOCUMENTINFORMATIONTitle Manual of Wave instrumentation – Survey of laboratories

Distribution [Choose distribution authorisation]

Document Reference MARINET-D2.27

Deliverable Leader

Amelie Tetu AAU

Contributing Authors

Thomas Lykke Andersen AAU

All Marinet Wave Laboratories

REVISIONHISTORYRev. Date Description Prepared by

(Name & Org.) Approved By (Task/Work-

Package Leader)

Status (Draft/Final)

01

ACKNOWLEDGEMENTThe work described in this publication has received support from the European Community - Research Infrastructure

Action under the FP7 “Capacities” Specific Programme through grant agreement number 262552, MaRINET.

LEGALDISCLAIMERThe views expressed, and responsibility for the content of this publication, lie solely with the authors. The European

Commission is not liable for any use that may be made of the information contained herein. This work may rely on

data from sources external to the MARINET project Consortium. Members of the Consortium do not accept liability

for loss or damage suffered by any third party as a result of errors or inaccuracies in such data. The information in

this document is provided “as is” and no guarantee or warranty is given that the information is fit for any particular

purpose. The user thereof uses the information at its sole risk and neither the European Commission nor any

member of the MARINET Consortium is liable for any use that may be made of the information.



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EXECUTIVESUMMARY

A survey has been prepared and sent to the infrastructure manager of the MARINET consortium within the wave

group. The deliverable gives an overview of all the Marinet laboratories and the wide range of configurations for

these facilities.



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CONTENTS

1 INTRODUCTION .............................................................................................................................................5

2 RESULTS OF SURVEY ......................................................................................................................................6

2.1 OVERVIEW OF FLUMES .......................................................................................................................................... 6

2.2 OVERVIEW OF BASINS ........................................................................................................................................... 8

3 CONCLUSIONS AND RECOMMENDATIONS .................................................................................................... 10

4 REFERENCES ................................................................................................................................................ 10

5 APPENDIX A: QUESTIONAIRE FORM ............................................................................................................. 12

5.1 GENERAL DESCRIPTION OF THE BASIN ..................................................................................................................... 12

5.2 STATUS OF THE BASIN .......................................................................................................................................... 12

5.3 BASIN DETAILS ................................................................................................................................................... 12

5.4 SEGMENTATION DETAILS OF THE WAVE GENERATOR ................................................................................................. 13

5.5 WAVE GENERATOR DETAILS .................................................................................................................................. 14

5.6 SIMULATION OF MULTIDIRECTIONAL SEA STATES ..................................................................................................... 16

5.7 REFERENCES ....................................................................................................................................................... 17

6 APPENDIX B1: AALBORG UNVIVERSITY, NEW FLUME .................................................................................... 18



6.3 BASIN DETAILS ................................................................................................................................................... 18




7 APPENDIX B2: UNIVERSITY OF FLORENCE, F-WCF FLUME .............................................................................. 22



7.3 BASIN DETAILS ................................................................................................................................................... 22




8 APPENDIX B3: UNIVERSITY COLLEGE CORK, HMRC, SHALLOW FLUME ............................................................ 26



8.3 BASIN DETAILS ................................................................................................................................................... 26




9 APPENDIX B5: IFREMER, ARCHIMÈDE, .......................................................................................................... 30



9.3 BASIN DETAILS ................................................................................................................................................... 30






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10 APPENDIX B6: CNR –INSEAN, BASIN CASTAGNETO ........................................................................................ 34



10.3 BASIN DETAILS ................................................................................................................................................... 34




11 APPENDIX B7: UNIVERSITY OF STRATHCLYDE, KELVIN HYDRODYNAMICS LABORATORY ................................. 38



11.3 BASIN DETAILS ................................................................................................................................................... 38




12 APPENDIX C1: AALBORG UNVIVERSITY, DEEP BASIN ..................................................................................... 42



12.3 BASIN DETAILS ................................................................................................................................................... 42




13 APPENDIX C2: AALBORG UNVIVERSITY, SHALLOW BASIN .............................................................................. 46



13.3 BASIN DETAILS ................................................................................................................................................... 46




14 APPENDIX C3: AALBORG UNVIVERSITY, NEW BASIN ...................................................................................... 50



14.3 BASIN DETAILS ................................................................................................................................................... 50




15 APPENDIX C4: ECN, BHGO BASIN .................................................................................................................. 54



15.3 BASIN DETAILS ................................................................................................................................................... 54




16 APPENDIX C5: FLOWAVE TT, FLOWAVE OCEAN ENERGY RESEARCH FACILITY ................................................. 58



16.3 BASIN DETAILS ................................................................................................................................................... 58




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17 APPENDIX C6: UNIVERSITY COLLEGE CORK, HMRC, DEEP FLUME ................................................................... 62



17.3 BASIN DETAILS ................................................................................................................................................... 62




18 APPENDIX C7: UNIVERSITY COLLEGE CORK, HMRC, SHALLOW BASIN ............................................................. 66



18.3 BASIN DETAILS ................................................................................................................................................... 66




19 APPENDIX C8: PLYMOUTH UNIVERSITY, COAST LABORATORY, OCEAN BASIN ................................................ 70



19.3 BASIN DETAILS ................................................................................................................................................... 70




20 APPENDIX C9: QUEEN’S UNIVERSITY BELFAST, HYDRAULICS LABORATORY WAVE TANK ................................ 74



20.3 BASIN DETAILS ................................................................................................................................................... 74




21 APPENDIX C10: QUEEN’S UNIVERSITY BELFAST, PORTAFERRY WAVE BASIN ................................................... 78



21.3 BASIN DETAILS ................................................................................................................................................... 78






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1 INTRODUCTIONThe present report gives guidance on the instrumentation and techniques in the various Marinet facilities. The

report does not provide additional guidance on best practises compared to the books that already exist (see

references). Instead the report provides a survey of wave generation and analysis equipment and techniques used

in existing facilities of the Marinet partners.



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2 RESULTSOFSURVEYResults of the survey are given for the wave laboratories of the Marinet partners. Laboratory facilities are divided

into flumes (appendix B) and basins (appendix C). Flumes are facilities for unidirectional wave generation where the

length is much larger than the width. In the case of wider flumes sometimes segmented wavemakers are used for

practical reasons, but for unidirectional wave generation only. Today most basins have segmented wavemakers with

multidirectional wave generation ability.

The laboratories that participated in the survey are mainly with in-house designed or Edinburgh Design wavemakers.

This is not a true representation of the population as some of the major wavemaker manufacturers are

underrepresented here (Bosch-Rexroth, DHI, HR Wallingford, VTI, etc.). In any case the survey gives an insight

intothe many different configurations available, but this overrepresentation should be kept in mind. For example it

can be mentioned that the surveys have a bias in showing that dry back is very common even for small scale

facilities. This is expected to be caused by this principle being used for most Edinburgh Design wavemakers, while

this is not representing an average small scale facility.

The following laboratories participated:

• Aalborg University (B1, C1, C2, C3)

• University of Florence (B2)

• University College Cork, HMRC (B3, C6, C7)

• Ifremer (B5)

• CNR –Insean (B6)

• University of Strathclyde (B7)

• ECN (C4)

• FloWave TT (C5)

• Plymouth University (C8)

• Queen’s University Belfast (C9, C10)

2.1 OVERVIEWOFFLUMESSeven wave flumes participated in the survey ranging from deep water to shallow water facilities. An overview of the

results can be found in Table 2.1 and the detailed results in appendix B.

The flumes range tremendously in size as width varies from 0.8 to 12.5 m and length from 22 to 220 m. The widest

and longest flumes are deep water flumes operating in the typical scale for small scale testing. However, these wide

and long flumes have typical ship testing as a main working area. Typical flumes for shallow water testing are 1-3 m

wide and 20 to 40 m long.

For wave flumes a large part of the wavemakers use in-house built software and in several cases are without active

absorption capabilities. However, most flumes operating in shallow water have active absorption capabilities or this

capability is under preparation.

The required time to settle down from one test to the next is in some facilities very large. This applies especially to

the wide and long flumes without active absorption capabilities. This might be explained by cross-modes which are

more easily developed in wide flumes than in narrow flumes. Cross-modes in flumes are in general difficult to damp

due to the fully reflecting sidewalls.



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B1 B2 B3 B5 B6 B7

Status COW COW COW OW SOW SOW

Field (C:Coastal; O: Offshore; S:Ship; W:WEC)

Exists now (construction year) 1980 1992 1970s 1978 1962

Last major refurbishing 2013 1990s 2013 2007

Under construction (expected year finished) 2016 2015

Planned (expected year of operation)

Geometry

Length [m] 22 37 22 50 220 76

Width [m] 1.5 0.8 3 12.5 9 4.6

Overall depth range [m] 0-1.3 0.8 0.6-1.2 9.7 3.5 1.7-2.3

Maximum depth (presence of a pit) [m] 1.3 0.8 2.2 19.7 3.5 2.3

Constant (C) / Variable depth (V) V C V C C V

Wavemaker characteristics

Manufacturer (IH: In-house; ED: Edinburgh Design; BR: Bosch-Rexroth; R:Remmer)

? IH ED BR R ED

Year of installation 2016 2013 2015 1990 1978 2007

Type (A: Piston; B: combined; C: Flap; D: Elev. piston; E: Elev. combined; F: Elev. Flap; G: Wedge)

A A BCF G F F

Wave board height 1.5 0.8 0.7 1.5

Wavemaker position

On a flat bottom Yes Yes No No

On an elevated platform, Hp [m] No No 0-0.5 1.70

In a trench, HT [m] No No -0.1 - 0 No No

Position vertically adjustable, HE [m] No No 0.6 No 0.2-0.8

Wavemaker rear side

Wet back (Wet); Dry-back (Dry) Wet Wet Dry Wet Dry Dry

Hydrostatic comp. H: Hydraulic; N2: high pressure gas (N2); Air: low pressure gas (air); S: Spring; O:other No: No compensation

- - S - N2 Air

Wavemaker actuation

Hydraulic (H) / Electric (E) E E E H H E

Actuator: BS: Ball-screw; Belt: Belt system L: Linear actuator; R: Rack and pinion system

L Belt L Belt

Wave generation synthesis

Regular waves Yes Yes Yes ? ? Yes

Irregular waves Yes Yes Yes ? ? Yes

Focused waves Yes Yes No ? ? Yes

Solitary waves Yes Yes No ? ? No

N-waves Yes Yes No ? ? No

Other Yes No No ? ? No

Maximum wave height

Maximum regular wave height [m] 0.65 0.35 0.20 0.55 0.45 0.7

Wave period associated with max. height [s] 2.2-3.0 1.8-2.0 1.3 1.9-2.5 ? 2.2

Installed power per m [kW/m] 6 5 5 ? ? ?

Active absorption (No, 2D, 3D) 2D No 3D No No 3D

Wave generation software (Awa: AwaSys; ED: Edinburgh Design; IH: In-house);

Awa IH ED IH IH ED

Required time for settle down after tests [min] 1-5 15 ? 10-30 50-60 5

Techniques to measure 2D waves

Wave probe array Yes Yes Yes Yes Yes Yes

Other technique No No No No No No

Table 2.1 Characteristics of flumes in survey.



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2.2 OVERVIEWOFBASINSTen wave basins participated in the survey ranging from deep water to shallow water facilities. An overview of the

results can be found in Table 2.2 and the detailed results in appendix C.

The size of the basins very tremendously, but with a quite clear tendency that basins for deep water testing are

larger than basins for shallow water testing. It can also be seen that for recently built basins electric actuation is

much more typical than hydraulic. With respect to paddle discretization (segment width) a typical value is 0.4 – 0.75

m. For most wavemaker types only box mode discretization is practical. However, for the piston wavemakers two

types of segmentation are possible, i.e. vertical hinged or box mode. For the same quality of the generated waves a

larger segment width can be chosen for vertical hinged. It is interesting to see that the survey shows that for

facilities working at approximately the same scale the used segment width is not larger for facilities with vertically

hinged paddles compared to facilities with box mode paddles. This seems to indicate that the vertical hinged type is

in most cases not selected to reduce investment costs, but instead to improve quality of waves for the same

investment.

Moreover, it appears that today most basins have active absorption systems, while in the survey by Mansard et al.

(1997) this was only available in approximately half of the basins. Active absorption is typically much more important

in flumes, but the survey shows that it is more typical to have this capability in basins instead of flumes. This is

probably because in-house machine and software is much more typical for flumes than in basins.

Finally it appears that reflective sidewall configuration (6 labs) is more typical than absorbing (1 lab) and

reflecting/absorbing sidewall (2 labs) configuration. The advantage of the fully reflective walls is that space is not

wasted on absorption elements and no diffraction effects exists for head-on unidirectional waves. The absorbing

walls are very effective in dampening radiated and reflected waves from models which otherwise will re-reflect at

the sidewalls and disturb the wavefield. Another advantage of the absorbing sidewall is that cross-modes are

damped so they never reach a critical level. A configuration of reflective and absorbing sidewalls is a compromise

used in two of the tested basins. One basin uses wavemakers with active absorption on all boundaries. In this case it

is a circular basin, but it could as well be a rectangular basin with wavemakers on several sides. It is a costly solution,

but gives also several advantages in terms of control of the wave field. The disadvantage might be that dampening of

high frequency wave components is typically not as good as with a passive absorber.

C1 C2 C3 C4 C5 C6 C7 C8 C9 C10

Status OW CO COW O W COW COW COW CW CW

Field (C:Coastal; O: Offshore; S:Ship; W:WEC)

Exists now (construction year) 1985 1996 2001 2013 1992 2012 2003 2009

Last major refurbishing 2011 2009 2006 2011

Under construction (expected year finished) 2016 2015 2015

Planned (expected year of operation)

Geometry

Length [m] 15.7 12 14.6 50 D=2

5

35 25 35 15 17

Width [m] 8.5 17.8 19 30 D=2

5

12 17.2 15.6 4.6 15

Overall depth [m] 0-0.9 0-0.6 0-1.3 5 2 0-3 1 0-3 0-0.8 0-0.6

Maximum depth (presence of a pit) [m] 2.4 0.6 4.8 10 2 3 2.5 3 0.8 0.78

Constant (C) / Variable depth (V) V V V C C V C V V V

Wavemaker characteristics

Manufacturer (IH: In-house; ED: Edinburgh Design; BR: Bosch-Rexroth; R:Remmer)

IH IH ? ED ED ED ED ED ED ED

Year of installation 1985 1996 2016 2001 2013 2015 2015 2012 2009 2009

Type (A: Piston; B: combined; C: Flap; D: Elev. piston; E: Elev. combined; F: Elev. Flap; G: Wedge)

A A A F F F F F A D



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Wave board height 1.0 0.7 1.5 4.2 2.22 2.5 0.7 2 1.1 0.8

C1 C2 C3 C4 C5 C6 C7 C8 C9 C10

Wavemaker segmentation

Segmented sides (1: One side; 2: Two sides; C: Circular)

1 1 1 1 C 1 1 1 1 1

Segmentation type (BOX: Stair case, box mode; VH: Straight line, vertically hinged mode)

VH VH VH Box Box Box Box Box Box Box

Number of segments on dominant side 10 25 26 48 168 16 40 24 6 24

Segment width dominant side [m] 0.9 0.5 0.5 0.62 0.42 0.75 0.42 0.65 0.75 0.5

Number of segments on opposite side - - - - - - - - - -

Segment width opposite side [m] - - - - - - - - - -

Sidewalls (R: Reflective; A: Absorbing; RA: Partly reflective, partly absorbing; AA: Active absorbing)

R RA RA R AA R R R R A

Wavemaker position

On a flat bottom Yes Yes Yes No No No No No Yes No

On an elevated platform Y/N No No 2.15 0.3 0.5 0.3 2.5 No 0.08

In a trench No No No No No No No No No No

Position vertically adjustable No No No No No No No No No No

Wavemaker rear side

Wet back (Wet); Dry-back (Dry) Wet Wet Wet Dry Dry Dry Dry Dry Wet Wet

hydrostatic comp. H: Hydraulic; N2: high pressure gas (N2); Air: low pressure gas (air); S: Spring; O:other No: No compensation

- - - Air Air Air S Air - -

Wavemaker actuation

Hydraulic (H) / Electric (E) H H E E E E E E E E

Actuator: BS: Ball-screw; Belt: Belt system L: Linear actuator; R: Rack and pinion system

L Belt ? Belt Belt Belt Belt Belt Belt Belt

Wave generation synthesis

Oblique long-crested regular waves Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

Oblique long-crested irregular waves Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

Focused waves Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

Short-crested with S(f) and D(θ) specified Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

Short-crested with S(f) and D(f, θ) specified Yes Yes Yes Yes Yes No No Yes Yes Yes

Short-crested with η(t) and D(θ) specified Yes Yes Yes Yes Yes No No No Yes Yes

Short-crested with η(t), u(t) and v(t) No No No Yes No No No No Yes Yes

Solitary waves Yes Yes Yes No No No No No Yes Yes

N-waves Yes Yes Yes No No No No No Yes Yes

Other Yes Yes Yes No No No No No Yes Yes

Maximum wave height

Maximum regular wave height [m] 0.4 0.3 0.45 1.0 0.5 1.0 0.2 1.0 0.45 0.27

Wave period associated with max. height [s] 1.6-

2.0

1.5-

3.0

1.6-

3.0

3.2 2.2 2.5-

2.8

1.3 2.2-

2.3

1.25 1.6

Installed power per m [kW/m] 12 8.8 4.0 7.0 2.1 5.3 1.8 ? ? ?

Active absorption (No, 2D waves, 3D waves) 3D 3D 3D 2D 3D 3D 3D 3D 3D 3D

Wave generation software (Awa: AwaSys; ED: Edinburgh Design; IH: In-house);

Awa Awa Awa ED ED ED ED ED ED ED

Required time for settle down after tests [min] 1-10 1-5 1-5 10 2-5 ? 2-10 6-8 5-10 2-5

Techniques to measure 3D waves

Wave probe with a 2 axis velocity meter No No No No No No No Yes Yes Yes

Wave probe array Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

Other technique No No No No No No No Yes Yes Yes

Table 2.2 Characteristics of basins in survey.



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3 CONCLUSIONSANDRECOMMENDATIONS

The conclusions are:

• Facilities very tremendously in size and capabilities.

• Facilities for deep water testing are typically much larger than other facilities. This applies especially to the

flumes with ship testing as the main working area.

• Commercial software is available in all basins, while in-house software is very common in flumes.

• Most basins have active absorption capabilities. The same applies to most shallow water flumes. Flumes

working in deep water usually deal with short tests or structures reflecting only a small part of the energy.

This is probably the reason for active absorption not being typical in these facilities.

• Wavemaker type is chosen dependent on water depth. Hinged wave makers are typical in deep water

facilities and piston wavemakers are typical in shallow water facilities. These choices reflect the best

reproduction of the target velocity profile to minimize nearfield disturbance.

• Segmentation in wave basins is a compromise between investment costs and quality and capabilities in

terms of oblique and short-crested waves. In coastal facilities vertical hinged pistons are in some cases used

to improve wave quality for the same costs.

• Fully reflective sidewalls are more typical for the basins in the survey (60%) than absorbing or partly

absorbing and partly reflecting (30%). Active absorption on all boundaries is used in one facility (10%).

• All flumes and basins measure waves with wave probe arrays, but a few basins are additionally able to use

other methods like η-u-v array and mapping of entire wave fields.



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4 REFERENCES

[1] Hughes, S.A. (1993). Physical Models and Laboratory Techniques in Coastal Engineering. Advanced Series on

Ocean Engineering, Vol. 7, World Scientific.

[2] Frostick, L.E., McLelland, S.J. and Mercer, T.G. (2011). Users Guide to Physical Modelling and

Experimentation. IAHR Design Manual, CRC Press.

[3] Lykke Andersen, T. and Frigaard, P. (2012). Wave Generation in Physical Models – Technical documentation

for AwaSys 6, DCE Lecture Notes 34, Aalborg University.

[4] Lykke Andersen, T. and Frigaard, P. (2012). Analysis of Waves - Technical documentation for WaveLab 3, DCE

Lecture Notes 33, Aalborg University.

[5] Mansard, E.P.D., Manoha, B. and Funke, E.R. (1997). A survey of multidirectional wave facilities, Proceedings

of the 27th International Association for Hydro-Environment Engineering and Research Congress, San

Francisco .



Page 12 of 84

5 APPENDIXA:QUESTIONAIREFORMPlease fill in one survey per wave basin, i.e. if one facility has many wave basins, one survey per basin.

5.1 GENERALDESCRIPTIONOFTHEBASINPlease fill in the table below concerning the general description of the wave basin.

General description

Name of the wave basin

Institute to which the wave basin is attached

Type of institute

Country

Field of specialization (coastal engineering, wave energy, offshore wind, oil and gas, ship, other)

5.2 STATUSOFTHEBASINPlease fill in the table below concerning the status of the wave basin.

The wave basin

Exists now (indicated construction date)

Has been recently refurbished (indicate refurbishment date)

Is under construction (indicated expected date of finalization)

Is planned to be built before 20xx (indicated when the basin will be operational)

5.3 BASINDETAILSThis part of the survey concerns the general description of the wave basin.

The basin has

Segmented generators on one side

Segmented generators on two sides

Other configuration (specify)

The basin presents

lateral reflective sides

lateral sides covered with absorbers

partly reflective, partly absorbing lateral sides

Basin dimensions

What is the shape of the basin?

Specify the dimensions (width, length, diameter). Schematic drawings are welcomed.

The basin has

An overall depth range of [m]

A maximum depth (presence of a pit) [m]



Page 13 of 84

The basin has

A constant water depth

A variable water depth

5.4 SEGMENTATIONDETAILSOFTHEWAVEGENERATORThe segment width dictates the upper frequency limit of the sea state that may be used in the basin through the

commonly used criterion called the Biesel limit.

Please specify the segment width of the wave generator.

Segment width

Segment width on the dominant side [m]

Segment width on the opposite side if present [m]

Segment width on the lateral side if present [m]

And the total number of segments.

Number of segments

Number of segments on the dominant side

Number of segments on the opposite side if present

Number of segments on the lateral side if present

Please specify the height of the segment wave board.

Height of the segment wave boards

Height of the segment wave boards on the dominant side [m]

Height of the segment wave boards on the opposite side if present [m]

Height of the segment wave boards on the lateral side if present [m]

a) Stair-case approximation

b) Straight line approximation

Figure 1. Types of wave board segmentation (taken from Error! Reference source not found.)

Please refer to Fig.2 in answering the following question.

Wave board segmentation

Stair-case approximation (box mode)

Straight line approximation (vertical hinged)



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5.5 WAVEGENERATORDETAILSPlease fill in the table below regarding general details of the wave generator.

5.5.1 GeneralcharacterisationofwavemakerThe wave makers can be described by considering any point of rotation given as depth below the bed level (l) and

elevated wave makers (h0) as depicted in Fig. 1.

Figure 2: Characterisation of different wave makers (taken from Error! Reference source not found.).

Please specify which one of the configuration shown above correspond to your case.

Configuration of the wave makers

Piston (pure translation)

Combined

Flap

Elevated piston

Elevated combined

Elevated flap

Other

General information on the wave generator

Manufacturer

If the generator has been built “in-house”, please specify the main component suppliers.

Year of installation

Control system (analogue or digital)

Control system manufacturer



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5.5.2 WavemachineadjustableWave generator can be installed in a variety of ways as depicted in Fig. 3.

(a) Machine on a flat bottom

(b) Machine on an elevated platform

(c) Machine in a trench

(d) Machine position vertically adjustable

Figure3. Side view of the wave machine installation (taken from Error! Reference source not found.)

Please fill in the table below, specifying the appropriate value if

Wave generator installation

Machine on a flat bottom

Machine on an elevated platform (specify Hp)

Machine in a trench (specify HT)

Machine position vertically adjustable (specify HE)

5.5.3 SpacebehindwavemachinesPlease fill in the information regarding the space behind the wave board.

The space behind the wave machines is

Flooded (wet-back)

Empty (dry-back)

If the space between the wave board is empty, please specify the type of hydrostatic compensation.

Hydrostatic compensation for dry-back wave machines

Hydraulic (+N2)

High pressure gas (N2)

Low pressure gas (air)

Other

No compensation

5.5.4 ActuatorsforwavegeneratorsDifferent types of actuators can be used to drive the wave paddles.

Please specify if the basin has hydraulic or electric actuation.

The actuations is

Hydraulic

Electric



Page 16 of 84

For electric actuation, please specify which type of system.

Type of actuation

Linear actuator

Ball-screw system

Rack and pinion system

Belt system

Other

5.6 SIMULATIONOFMULTIDIRECTIONALSEASTATES

5.6.1 TypesofseastatesthatcanbegeneratedPlease indicate what type of waves can be generated in the wave basin.

The wave generator can produce

Oblique long-crested regular waves

Oblique long-crested irregular waves

Focused waves

Short-crested with S(f) and D(θ) specified

Short-crested with S(f) and D(f, θ) specified

Short-crested with η(t) and D(θ) specified

Short-crested with η(t), u(t) and v(t)

Solitary waves

N-waves

Other

Where S(f) is the variance spectral density, D(f, θ) is the angular spreading function satisfying the relationship:

� ��, �� = 1�

��

η(t) is the surface elevation, and u(t) and v(t) are the two orthogonal horizontal velocity components in the x and the

y-direction respectively.

5.6.2 InstrumentationforwaveanalysisThere are several techniques to measure and analyse unidirectional and multidirectional waves. Please fill in the

tables below for 1D wave and multidirectional waves

Instrumentation for wave analysis: technique used to measure and analyse 1D waves

Wave probe array

Other techniques

Instrumentation for wave analysis: technique used to measure and analyse multidirectional waves

Wave probe with a 2 axis velocity meter

Wave probe array

Other techniques



Page 17 of 84

5.6.3 CapabilityintermsofmaximumwaveheightPlease fill in the table below by indicating what is the maximum wave height of regular wave that you can generate

in the basin.

Capability in terms of maximum wave height

Maximum wave height of regular wave [m]

Wave period associated with this maximum wave height [s]

Installed power per m (total installed power for direct drive motors, or pump motors if hydraulic, divided by total width of segmented generator) [KW/m]

5.6.4 ActivewaveabsorptionMost major laboratories have developed techniques to minimize re-reflections from the generator, minimizing at the

same time erroneous test results caused by re-reflected waves. Please indicate in the table below if your basin is

equipped with active wave absorption.

Indicate if your basin in equipped with active wave absorption

No absorption

Absorption of 2D waves


5.6.5 LengthoftimeneededforbasinoscillationtosettledownThe waiting period between two tests corresponds to the time required for the basin to settle down after a test.

Please specify what it is for your basin.

What is the time required for the basin to settle down after tests?

Time [min]

5.6.6 SoftwarecontrollingthewavegeneratorPlease specify the software controlling the wave generator.

Software controlling the wave generator

Name of the software and version

5.7 REFERENCES[1] Lykke Andersen, T. and Frigaard, P. (2012). Wave Generation in Physical Models – Technical documentation

for AwaSys 6, DCE Lecture Notes 34, Aalborg University.

[2] Mansard, E.P.D., Manoha, B. and Funke, E.R. (1997). A survey of multidirectional wave facilities, Proceedings

of the 27th International Association for Hydro-Environment Engineering and Research Congress, San

Francisco .



Page 18 of 84

6 APPENDIXB1:AALBORGUNVIVERSITY,NEWFLUME

6.1 GENERALDESCRIPTIONOFTHEBASINGeneral description

Name of the wave basin New flume (no official name yet)

Institute to which the wave basin is attached Aalborg University

Type of institute University

Country Denmark


Wave energy, coastal engineering, offshore wind

6.2 STATUSOFTHEBASINThe wave basin




2016


6.3 BASINDETAILSThe basin has

Segmented generators on one side X



The basin presents

lateral reflective sides X



Basin dimensions

What is the shape of the basin? Rectangular


1.5 x 22 x 1.5 m (W x L x H)

The basin has

An overall depth range of [m] 0.0 - 1.3

A maximum depth (presence of a pit) [m] 1.3

The basin has


A variable water depth X



Page 19 of 84

6.4 SEGMENTATIONDETAILSOFTHEWAVEGENERATORSegment width

Segment width on the dominant side [m] 1.5



Number of segments

Number of segments on the dominant side 1





1.5






6.5 WAVEGENERATORDETAILS

6.5.1 GeneralcharacterisationofwavemakerConfiguration of the wave makers

Piston (pure translation) X

Combined

Flap

Elevated piston

Elevated combined

Elevated flap

Other


Manufacturer Not confirmed







Page 20 of 84

6.5.2 WavemachineadjustableWave generator installation

Machine on a flat bottom X




6.5.3 SpacebehindwavemachinesThe space behind the wave machines is

Flooded (wet-back) X

Empty (dry-back)

6.5.4 ActuatorsforwavegeneratorsThe actuations is

Hydraulic

Electric X

Type of actuation

Linear actuator

Ball-screw system Not confirmed


Belt system

Other


6.6.1 TypesofseastatesthatcanbegeneratedThe wave generator can produce

Long-crested regular waves X

Long-crested irregular waves X

Focused waves X

Solitary waves X

N-waves X

Other stream function regular waves, specified wave trains, 2nd

order compensation for all irregular sea states

6.6.2 InstrumentationforwaveanalysisInstrumentation for wave analysis: technique used to measure and analyse 1D waves

Wave probe array X

Other techniques



Page 21 of 84

6.6.3 CapabilityintermsofmaximumwaveheightCapability in terms of maximum wave height

Maximum wave height of regular wave [m] 0.65


2.2-3.0


6

6.6.4 ActivewaveabsorptionIndicate if your basin in equipped with active wave absorption

No absorption

Absorption of 2D waves X


6.6.5 LengthoftimeneededforbasinoscillationtosettledownWhat is the time required for the basin to settle down after tests?

Time [min] 1-5 depending on criteria (expected value based on

existing facility with similar configuration)

6.6.6 SoftwarecontrollingthewavegeneratorSoftware controlling the wave generator

Name of the software and version AwaSys 7 (Aalborg University, hydrosoft.civil.aau.dk)



Page 22 of 84

7 APPENDIXB2:UNIVERSITYOFFLORENCE,F-WCFFLUME


Name of the wave basin F-WCF Florence Wave-Current Flume

Institute to which the wave basin is attached DICEA - University of Florence


Country Italy


coastal engineering, wave energy, offshore wind, oil and

gas


Exists now (indicated construction date) 1980


2013




Segmented generators on one side yes



The basin presents

lateral reflective sides glass wall (note, it is a flume not a basin)

lateral sides covered with absorbers Passive absorber at the flume end (note, it is a flume not

a basin)


Basin dimensions



37 m x 0.8 m x 0.8 m

The basin has

An overall depth range of [m]


The basin has

A constant water depth 0.8 m




Page 23 of 84


Segment width on the dominant side [m] 0.8m



Number of segments

Number of segments on the dominant side 1 (note it is a flume , 2D, not a basin, 3D)





0.8m








Piston (pure translation) yes

Combined

Flap

Elevated piston

Elevated combined

Elevated flap

Other


Manufacturer


- Linear actuator: Thomson

- Servoamplifier and motor: Kollmorgen

- Command and acquisition electronics: National

Instruments

- Structural components: Bosh

- Power box: us

- Design, assembling, firmware and software: us

Year of installation 2013

Control system (analogue or digital) Digital

Control system manufacturer us



Page 24 of 84


Machine on a flat bottom yes





Flooded (wet-back) 1 wave board (note it is a flume , 2D, not a basin, 3D)

Empty (dry-back)


Hydraulic

Electric yes

Type of actuation

Linear actuator yes

Ball-screw system


Belt system

Other



Long-crested regular waves yes

Long-crested irregular waves yes

Focused waves yes

Solitary waves yes

N-waves yes

Other


Wave probe array yes

Other techniques



Page 25 of 84


Maximum wave height of regular wave [m] 0.35m


1.8s – 2.0s (note: the paddle stroke is +- 80cm for a total

displacement of 160cm, thus much longer waves can be

generated)


5 kW


No absorption Under development (planned for end of 2015 early

2016)




Time [min] Approx. 15min


Name of the software and version No name yet! Just made by us



Page 26 of 84

8 APPENDIX B3: UNIVERSITY COLLEGE CORK, HMRC,SHALLOWFLUME


Name of the wave basin Shallow flume, wave and current

Institute to which the wave basin is attached Beaufort – University College Cork

Type of institute National Ocean Test Facility - University

Country Ireland


Coastal engineering, wave energy, floating wind.




No


Yes


June 2015


Segmented generators on one side Yes, 6 segments

Segmented generators on two sides No

Other configuration (specify) No

The basin presents

lateral reflective sides Yes

lateral sides covered with absorbers No

partly reflective, partly absorbing lateral sides No

Basin dimensions

What is the shape of the basin? Rectangle


3m*22m

The basin has

An overall depth range of [m] 0.6 to 1.2 m (paddles with variable vertically position)

A maximum depth (presence of a pit) [m] 1.6 to 2.2 m for wave only on all the flume working area

The basin has

A constant water depth No

A variable water depth Yes, 0.6 to 1.2 m



Page 27 of 84


Segment width on the dominant side [m] 0.5 m

Segment width on the opposite side if present [m] N/A

Segment width on the lateral side if present [m] N/A

Number of segments


Number of segments on the opposite side if present N/A

Number of segments on the lateral side if present N/A



0.7m


N/A


N/A


Stair-case approximation (box mode) Yes

Straight line approximation (vertical hinged) No



Piston (pure translation) No

Combined No

Flap Yes

Elevated piston N/A

Elevated combined N/A

Elevated flap Yes, h0= -0.1 to +0.5m

Other N/A


Manufacturer Edinburgh Design Ltd


N/A


Control system (analogue or digital) Digital control (Analogue force feedback)

Control system manufacturer Edinburgh Design Ltd



Page 28 of 84


Machine on a flat bottom No

Machine on an elevated platform (specify Hp) Yes, Hp=0 to 0.5 m (water depth 0.7 and above)

Machine in a trench (specify HT) Yes, Ht=0 to -0.1 m (water depth 0.7 and below)

Machine position vertically adjustable (specify HE) Yes, He=0.6 m


Flooded (wet-back) No

Empty (dry-back) Yes


Hydraulic (+N2) No

High pressure gas (N2) No

Low pressure gas (air) No

Other Spring loaded

No compensation No


Hydraulic No

Electric Yes

Type of actuation

Linear actuator No

Ball-screw system No

Rack and pinion system No

Belt system Yes

Other No



Long-crested regular waves Yes

Long-crested irregular waves Yes

Focused waves No

Solitary waves No

N-waves No

Other No


Wave probe array Yes, Funke and Mansard, 3 probes array.

Other techniques No



Page 29 of 84




1.3 sec.


5kW/m (15kW total)


No absorption No

Absorption of 2D waves Yes



Time [min] To be assessed


Name of the software and version 2015 EDL software



Page 30 of 84

9 APPENDIXB5:IFREMER,ARCHIMÈDE,


Name of the wave basin Archimède

Institute to which the wave basin is attached Ifremer

Type of institute Public

Country France


Wave energy, offshore wind, oil and gas


Exists now (indicated construction date) 70’s


90’s






Other configuration (specify) One side unidirectional wedge type generator

The basin presents




Basin dimensions



L = 50 m, B = 12.5 m

The basin has

An overall depth range of [m] D = 9.7 on ¾ length

A maximum depth (presence of a pit) [m] 19.7 m on ¼ length (below damping beach)

The basin has





Page 31 of 84


Segment width on the dominant side [m]



Number of segments

Number of segments on the dominant side













Combined

Flap

Elevated piston

Elevated combined

Elevated flap

Other Wedge (Triangular plunging)


Manufacturer


Hydraulics by Bosch Rexroth

Year of installation Early 90’s

Control system (analogue or digital) Analog




Page 32 of 84







Flooded (wet-back) x

Empty (dry-back)


Hydraulic 2 hydraulic jacks

Electric

Type of actuation

Linear actuator x

Ball-screw system


Belt system

Other



Oblique long-crested regular waves

Oblique long-crested irregular waves

Focused waves

Short-crested with S(f) and D(θ) specified

Short-crested with S(f) and D(f, θ) specified



Solitary waves

N-waves

Other


Wave probe array 4 - servo gauges array

Other techniques



Page 33 of 84



Wave probe array

Other techniques


Maximum wave height of regular wave [m] 0.55 m


[1.9, 2.5] s



No absorption x




Time [min] 10 to 30 mn depending on the wave periods and heights


Name of the software and version Home made



Page 34 of 84

10 APPENDIXB6:CNR–INSEAN,BASINCASTAGNETO


Name of the wave basin Basin "Castagneto"

Institute to which the wave basin is attached CNR -Insean

Type of institute Public Company

Country Italy


Ship, Wave-Structure Interactions, Wave Energy




Only the wave generator has been recently refurbished

(in 2013)


__


__


Segmented generators on one side YES

Segmented generators on two sides NO

Other configuration (specify) __

The basin presents


lateral sides covered with absorbers There is only an absorber beach in the opposite side of

the wave generator

partly reflective, partly absorbing lateral sides ---

Basin dimensions



Length: 220 m; Width: 9 m;

The basin has

An overall depth range of [m] 3.5 m

A maximum depth (presence of a pit) [m] 3.5 m

The basin has

A constant water depth YES

A variable water depth NO



Page 35 of 84


Segment width on the dominant side [m] ---

Segment width on the opposite side if present [m] ---

Segment width on the lateral side if present [m] ---

Number of segments

Number of segments on the dominant side ---

Number of segments on the opposite side if present ---

Number of segments on the lateral side if present ---



__


__


__


Stair-case approximation (box mode) ---

Straight line approximation (vertical hinged) ---



Piston (pure translation) NO

Combined NO

Flap NO

Elevated piston NO

Elevated combined NO

Elevated flap YES

Other NO


Manufacturer Remmers


__


Control system (analogue or digital) Hybrid

Control system manufacturer Bosch



Page 36 of 84


Machine on a flat bottom ---

Machine on an elevated platform (specify Hp) Hp = 1.70 m

Machine in a trench (specify HT) ---

Machine position vertically adjustable (specify HE) ---


Flooded (wet-back) NO

Empty (dry-back) YES


Hydraulic (+N2) Yes

High pressure gas (N2) --

Low pressure gas (air) --

Other --

No compensation --


Hydraulic YES

Electric NO

Type of actuation

Linear actuator

Ball-screw system


Belt system

Other



Long-crested regular waves Yes

Long-crested irregular waves Yes

Focused waves ---

Solitary waves ---

N-waves ---

Other ---



Page 37 of 84


Wave probe array YES

Other techniques NO




From 1 to 10 sec


___


No absorption There isn’t any active wave absorber, there is only a

beach one at the opposite side of the wave machine

Absorption of 2D waves ---

Absorption of 3D waves ---


Time [min] 50 - 60


Name of the software and version A homemade software in LabvIEW environment controls

position, speed and acceleration of the wave paddle.



Page 38 of 84

11 APPENDIX B7: UNIVERSITY OF STRATHCLYDE, KELVINHYDRODYNAMICSLABORATORY


Name of the wave basin Kelvin Hydrodynamics Laboratory

Institute to which the wave basin is attached University of Strathclyde


Country Scotland


Ships / Oil & Gas / Offshore renewables




Ongoing. New wavemakers 2007


n/a


n/a





The basin presents


lateral sides covered with absorbers X (absorbers can be raised and lowered)


Basin dimensions

What is the shape of the basin?


76m L x 4.6m W

The basin has

An overall depth range of [m] Water depth 1.7-2.3m for wave tests

A maximum depth (presence of a pit) [m] As above

The basin has





Page 39 of 84





Number of segments






1.5m (hinge depth)




Stair-case approximation (box mode) X





Combined

Flap

Elevated piston

Elevated combined

Elevated flap X

Other

11.5.2 WavemachineadjustableMachine on a flat bottom



Machine position vertically adjustable (specify HE) X Variable c 0.2-0.8


Manufacturer Edinburgh Designs




Control system manufacturer Edinburgh Designs



Page 40 of 84


Flooded (wet-back)

Empty (dry-back) X


Hydraulic (+N2)


Low pressure gas (air) X

Other

No compensation


Hydraulic

Electric X

Type of actuation

Linear actuator

Ball-screw system


Belt system X

Other



Long-crested regular waves X

Long-crested irregular waves X

Focused waves X

Solitary waves

N-waves ?

Other


Wave probe array X

Other techniques



Page 41 of 84


Maximum wave height of regular wave [m] C 0.7m but depends on water depth (freeboard)


C 2.2s


Don’t know


No absorption




Time [min] Depends on test, in particular wave heights used and

degree of calmness required. For tests in waves typically

5 minutes


Name of the software and version Edinburgh Designs software, latest version



Page 42 of 84

12 APPENDIXC1:AALBORGUNVIVERSITY,DEEPBASIN


Name of the wave basin Deep basin



Country Denmark


Wave energy, offshore wind




Only standard maintenance







The basin presents




Basin dimensions

What is the shape of the basin? Rectangular, wave maker on the short side of rectangle


8.5 x 15.7 x 1.5 m (W x L x H)

The basin has


A maximum depth (presence of a pit) [m] 2.4m (2.1m x 4.5m)

The basin has


A variable water depth x



Page 43 of 84





Number of segments






1.0





Straight line approximation (vertical hinged) X




Combined

Flap

Elevated piston

Elevated combined

Elevated flap

Other


Manufacturer In-house



Control system (analogue or digital) Analogue




Page 44 of 84

12.5.2 Wavemachineadjustable Wave generator installation


Machine on an elevated platform (specify Hp) Platforms exists to transform it to this, but has only

rarely been used





Empty (dry-back)


Hydraulic X

Electric

Type of actuation

Linear actuator X

Ball-screw system


Belt system

Other



Oblique long-crested regular waves X

Oblique long-crested irregular waves X

Focused waves X

Short-crested with S(f) and D(θ) specified X

Short-crested with S(f) and D(f, θ) specified X (Goda frequency dependency)

Short-crested with η(t) and D(θ) specified X


Solitary waves X

N-waves X



12.6.2 Instrumentationforwaveanalysis


Wave probe array X

Other techniques



Page 45 of 84



Wave probe array X

Other techniques




1.6-2.0


12


No absorption




Time [min] 1-10 depending on criteria





Page 46 of 84

13 APPENDIXC2:AALBORGUNVIVERSITY,SHALLOWBASIN


Name of the wave basin Shallow basin



Country Denmark


Coastal engineering, offshore wind




Added 3D active absorption (2011)







The basin presents



partly reflective, partly absorbing lateral sides X

Basin dimensions

What is the shape of the basin? Rectangular, wave maker on the long side of rectangle


17.8 x 12.0 x 1.0 m (W x L x H)

The basin has



The basin has





Page 47 of 84





Number of segments






0.7









Combined

Flap

Elevated piston

Elevated combined

Elevated flap

Other


Manufacturer In-house


Danfoss Hydraulic Motor, Moog hydraulic valves, Moog

servo controller, INA-Lejer belt drive, Danfoss hydraulic

pump


Control system (analogue or digital) Digital/Analogue

Control system manufacturer Moog



Page 48 of 84








Empty (dry-back)


Hydraulic X

Electric

Type of actuation

Linear actuator

Ball-screw system


Belt system X

Other





Focused waves X





Solitary waves X

N-waves X




Wave probe array X

Other techniques



Page 49 of 84



Wave probe array X

Other techniques




1.5-3.0


8.8


No absorption




Time [min] 1-5 depending on criteria





Page 50 of 84

14 APPENDIXC3:AALBORGUNVIVERSITY,NEWBASIN


Name of the wave basin New basin (no official name yet)



Country Denmark


Wave energy, coastal engineering, offshore wind





2016






The basin presents



partly reflective, partly absorbing lateral sides X

Basin dimensions

What is the shape of the basin? Rectangular, wave maker on the long side of rectangle


19 x 14.6 x 1.5 m (W x L x H)

The basin has


A maximum depth (presence of a pit) [m] 4.8 m maximum with adjustable floor in central area of

2.05 m x 6.5m.

The basin has





Page 51 of 84


Segment width on the dominant side [m] 0.5 (not confirmed)



Number of segments

Number of segments on the dominant side 26 (not confirmed)





1.5









Combined

Flap

Elevated piston

Elevated combined

Elevated flap

Other


Manufacturer Not confirmed







Page 52 of 84








Empty (dry-back)


Hydraulic

Electric X

Type of actuation

Linear actuator

Ball-screw system Not confirmed


Belt system

Other





Focused waves X





Solitary waves X

N-waves X




Wave probe array X

Other techniques



Page 53 of 84



Wave probe array X

Other techniques




1.6-3.0


4


No absorption




Time [min] 1-5 depending on criteria (expected value)





Page 54 of 84

15 APPENDIXC4:ECN,BHGOBASIN


Name of the wave basin BHGO

Institute to which the wave basin is attached ECN

Type of institute Engineering school

Country France


Ocean engineering


Exists now (indicated construction date) Built in 2001





Segmented generators on one side Yes



The basin presents

lateral reflective sides yes


partly reflective, partly absorbing lateral sides no

Basin dimensions

What is the shape of the basin? Rectangular. wave maker on the short side of rectangle


5 x30 x 50m

The basin has

An overall depth range of [m] 5m fixed

A maximum depth (presence of a pit) [m] 10m deep square pit, 5x5m in the centre of basin

The basin has

A constant water depth yes

A variable water depth no



Page 55 of 84


Segment width on the dominant side [m] 62.5 cm

Segment width on the opposite side if present [m] -

Segment width on the lateral side if present [m] -

And the total number of segments.

Number of segments


Number of segments on the opposite side if present None

Number of segments on the lateral side if present None

Please specify the height of the segment wave board.



4.2 m, starting at 2.147 m from the tank floor


None


None


Stair-case approximation (box mode) YES

Straight line approximation (vertical hinged) NO




Combined

Flap

Elevated piston

Elevated combined

Elevated flap Yes, h_0=2.147 m

Other


Manufacturer Edinburgh Design Ltd.



Control system (analogue or digital) digital

Control system manufacturer Edinburgh Design Ltd.



Page 56 of 84



Machine on an elevated platform (specify Hp) Yes, Hp=2.147 m




Flooded (wet-back)



Hydraulic (+N2)


Low pressure gas (air) yes

Other

No compensation


Hydraulic

Electric Yes, 4.4kW motor per paddle

Type of actuation

Linear actuator

Ball-screw system


Belt system Yes

Other



Oblique long-crested regular waves Yes

Oblique long-crested irregular waves Yes

Focused waves Yes

Short-crested with S(f) and D(θ) specified Yes

Short-crested with S(f) and D(f, θ) specified Unusual but doable

Short-crested with η(t) and D(θ) specified Never been done here to our knowledge, but doable

Short-crested with η(t), u(t) and v(t) Never been done here to our knowledge, but certainly

doable. What instrument do you use to get eta, U,V in a

point in a basin?

Solitary waves No, as deep water basin

N-waves No, as deep water basin

Other



Page 57 of 84

Where S(f) is the variance spectral density, D(f, θ) is the angular spreading function satisfying the relationship:


Wave probe array Yes, capacitive, resistive and acoustic wave probes

available

Other techniques



Wave probe array yes

Other techniques


Maximum wave height of regular wave [m] 1m


3.2 s


=48 x 4.4kW/30m=7.04kW/m


No absorption

Absorption of 2D waves yes



Time [min] This hugely depends on how much energy was put in the

basin, and if transverse modes were excited. In usual

conditions, settle time about 10mn, otherwise

(transverse modes existing) about 1h30-2h


Name of the software and version Edesign software



Page 58 of 84

16 APPENDIX C5: FLOWAVE TT, FLOWAVE OCEAN ENERGYRESEARCHFACILITY


Name of the wave basin FloWave Ocean Energy Research Facility

Institute to which the wave basin is attached FloWave TT / University of Edinburgh

Type of institute Non-Profit Distributing Research and Technology

Organisation

Country United Kingdom


Wave and tidal energy









Other configuration (specify) Circular configuration with wavemakers arranged around

complete circumference in conjunction with multi-

directional current.

The basin presents


lateral sides covered with absorbers Active absorbing wavemakers on entire circumference


Basin dimensions

What is the shape of the basin? Circular


25m diameter

The basin has

An overall depth range of [m] 2m uniform depth




Page 59 of 84

The basin has

A constant water depth X



Segment width on the dominant side [m] 0.42m on all wavemakers (circular configuration)



Number of segments

Number of segments on the dominant side 168 (circular configuration)





2.22m overall height. 1.7m hinge depth.









Combined

Flap

Elevated piston

Elevated combined

Elevated flap X

Other


Manufacturer Edinburgh Designs Ltd.




Control system manufacturer Edinburgh Designs Ltd.



Page 60 of 84



Machine on an elevated platform (specify Hp) 0.3m




Flooded (wet-back)

Empty (dry-back) X


Hydraulic (+N2)


Low pressure gas (air) X

Other

No compensation


Hydraulic

Electric X

Type of actuation

Linear actuator

Ball-screw system


Belt system X

Other





Focused waves X


Short-crested with S(f) and D(f, θ) specified X

Short-crested with η(t) and D(θ) specified X (by conversion to frequency domain)


Solitary waves

N-waves

Other



Page 61 of 84


Wave probe array X

Other techniques



Wave probe array X

Other techniques


Maximum wave height of regular wave [m] 0.5m in typical operation


2.2s


2.14 KW/m


No absorption




Time [min] 2-5 mins


Name of the software and version Edinburgh Designs Ltd. Njord suite



Page 62 of 84

17 APPENDIX C6: UNIVERSITY COLLEGE CORK, HMRC, DEEPFLUME


Name of the wave basin Deep wave flume



Country Ireland




Exists now (indicated construction date) No


No


Yes, finalization in June 2015


June 2015


Segmented generators on one side 16 segments



The basin presents




Basin dimensions



35m*12m

The basin has

An overall depth range of [m] 0 to 3m (movable floor)

A maximum depth (presence of a pit) [m] 3m

The basin has

A constant water depth No

A variable water depth Yes from 0 to 3m and slopes between sections



Page 63 of 84


Segment width on the dominant side [m] 0.747 m



Number of segments






2.5 m


N/A


N/A







Combined No

Flap Yes

Elevated piston N/A


Elevated flap Yes, h0= 0.5m

Other N/A




N/A


Control system (analogue or digital) Digital control, Analogue force feedback




Page 64 of 84



Machine on an elevated platform (specify Hp) Yes, Hp=0.5m

Machine in a trench (specify HT) No

Machine position vertically adjustable (specify HE) No





Hydraulic (+N2) No


Low pressure gas (air) Yes

Other No

No compensation No


Hydraulic No

Electric Yes

Type of actuation

Linear actuator No



Belt system Yes

Other No





Focused waves Yes


Short-crested with S(f) and D(f, θ) specified No

Short-crested with η(t) and D(θ) specified No

Short-crested with η(t), u(t) and v(t) No

Solitary waves No

N-waves No

Other No



Page 65 of 84




Other techniques No


Wave probe with a 2 axis velocity meter No

Wave probe array Yes

Other techniques No


Maximum wave height of regular wave [m] 1m


2.5-2.8 sec.


5.33 kVA/m (64kVA total)


No absorption No




Time [min] To be assessed after commissioning





Page 66 of 84

18 APPENDIXC7:UNIVERSITYCOLLEGECORK,HMRC,SHALLOWBASIN


Name of the wave basin Shallow basin



Country Ireland






2009


New facility under construction, same characteristics


Will be moved to Beaufort laboratory in 2015


Segmented generators on one side 40 segments



The basin presents




Basin dimensions



25m*17.2m

The basin has

An overall depth range of [m] 1m

A maximum depth (presence of a pit) [m] 2.5m (pit 10m* 17.2)

The basin has

A constant water depth Yes

A variable water depth No



Page 67 of 84





Number of segments






0.7m


N/A


N/A







Combined No

Flap Yes

Elevated piston N/A


Elevated flap Yes, h0= 0.3m

Other N/A




N/A


Control system (analogue or digital) Digital control (Analogue force feedback)




Page 68 of 84



Machine on an elevated platform (specify Hp) Yes, Hp=0.3m

Machine in a trench (specify HT) No

Machine position vertically adjustable (specify HE) No





Hydraulic (+N2) No


Low pressure gas (air) No

Other Spring loaded

No compensation No


Hydraulic No

Electric Yes

Type of actuation

Linear actuator No



Belt system Yes

Other No





Focused waves Yes


Short-crested with S(f) and D(f, θ) specified No

Short-crested with η(t) and D(θ) specified No

Short-crested with η(t), u(t) and v(t) No

Solitary waves No

N-waves No

Other No



Page 69 of 84




Other techniques No


Wave probe with a 2 axis velocity meter No


Other techniques No




1.3 sec.


1.76 kW/m (30kW total)


No absorption No




Time [min] 2 to 10 minutes, depending on waves and models used





Page 70 of 84

19 APPENDIX C8: PLYMOUTH UNIVERSITY, COASTLABORATORY,OCEANBASIN


Name of the wave basin Ocean Basin

Institute to which the wave basin is attached COAST laboratory, Plymouth University


Country UK


Coastal engineering, ocean engineering, marine

renewables, offshore wind, oil & gas


Exists now (indicated construction date) Opened September 2012





Segmented generators on one side Yes



The basin presents




Basin dimensions



15.65m x 35m

The basin has

An overall depth range of [m] 0.0m to 3.0m


The basin has





Page 71 of 84





Number of segments






2m









Combined

Flap

Elevated piston

Elevated combined

Elevated flap Yes

Other


Manufacturer Edinburgh Designs Ltd


Year of installation 2011-12


Control system manufacturer Edinburgh Designs Ltd



Page 72 of 84



Machine on an elevated platform (specify Hp) 2.5m




Flooded (wet-back)



Hydraulic (+N2)



Other Compressed air

No compensation


Hydraulic

Electric Yes

Type of actuation

Linear actuator

Ball-screw system


Belt system Yes

Other





Focused waves Yes


Short-crested with S(f) and D(f, θ) specified Yes



Solitary waves

N-waves

Other



Page 73 of 84



Other techniques


Wave probe with a 2 axis velocity meter Yes


Other techniques Experimental stage radar




2.2-2.3s



No absorption




Time [min] Varies depending on forcing frequencies, but 6-8mins is

usually OK


Name of the software and version Edinburgh Designs Ltd. software



Page 74 of 84

20 APPENDIXC9:QUEEN’SUNIVERSITYBELFAST,HYDRAULICSLABORATORYWAVETANK


Name of the wave basin Hydraulics Laboratory Wave Tank

Institute to which the wave basin is attached Queen’s University Belfast, School of Planning,

Architecture & Civil Engineering

Type of institute Research & teaching / University



Coastal Engineering, Wave Energy, Tidal Energy




2006


-


-





The basin presents

lateral reflective sides Full length glass walls for observation



Basin dimensions

What is the shape of the basin? Rectangular,


4.6m wide, 15m long

The basin has

An overall depth range of [m] 0-0.8

A maximum depth (presence of a pit) [m] 0.8

The basin has





Page 75 of 84



Segment width on the opposite side if present [m] None

Segment width on the lateral side if present [m] None

Number of segments






1.1


None


None






Piston (pure translation) 0.6

Combined

Flap

Elevated piston

Elevated combined

Elevated flap

Other






Control system manufacturer EDL



Page 76 of 84


Machine on a flat bottom x






Empty (dry-back)


Hydraulic

Electric X

Type of actuation

Linear actuator

Ball-screw system


Belt system X

Other





Focused waves X




Short-crested with η(t), u(t) and v(t) X

Solitary waves X

N-waves X

Other Specific wave trains


Wave probe array Up to 32

Other techniques Velocity



Page 77 of 84


Wave probe with a 2 axis velocity meter X

Wave probe array X

Other techniques Mapping of entire wave fields




1.25


Not known


No absorption




Time [min] 5-10 depending on acceptance criteria


Name of the software and version EDL wave maker software

All dimensions in mm, diagram shows only active section of wave tank



Page 78 of 84

21 APPENDIX C10: QUEEN’S UNIVERSITY BELFAST,PORTAFERRYWAVEBASIN


Name of the wave basin Portaferry Wave Basin

Institute to which the wave basin is attached Queen’s University Belfast, School of Planning,

Architecture & Civil Engineering

Type of institute Research & teaching / University



Coastal Engineering, Wave Energy, Tidal Energy




2011


-


-




Other configuration (specify) Can be arrange in curved configuration (45°)

The basin presents



partly reflective, partly absorbing lateral sides Fully absorbing sides with small reflective transition from

wave maker to beach

Basin dimensions

What is the shape of the basin? Rectangular,


15m wide, 17m long

The basin has

An overall depth range of [m] 0-0.625 (excluding pit, 0.875 with raised wave maker

A maximum depth (presence of a pit) [m] 0.775 (with 0.625m depth at wave maker)



Page 79 of 84

The basin has





Segment width on the opposite side if present [m] None

Segment width on the lateral side if present [m] None

Number of segments






0.8


None


None






Piston (pure translation) 0.6

Combined

Flap

Elevated piston X h0 = 0.075m

Elevated combined

Elevated flap

Other






Control system manufacturer EDL



Page 80 of 84



Machine on an elevated platform (specify Hp) 0.075


Machine position vertically adjustable (specify HE) Can be raised by further 0.25m (static)



Empty (dry-back)


Hydraulic (+N2)



Other

No compensation


Hydraulic

Electric X

Type of actuation

Linear actuator

Ball-screw system


Belt system X

Other





Focused waves X




Short-crested with η(t), u(t) and v(t) X

Solitary waves X

N-waves X

Other Specific wave trains



Page 81 of 84


Wave probe array Up to 32

Other techniques Velocity


Wave probe with a 2 axis velocity meter X

Wave probe array X

Other techniques Mapping of entire wave fields




1.55 -1.65


Not known, the installed power is also required to

overcome the hydrostatic pressure due to buoyant wave

pistons


No absorption




Time [min] 2-5 depending on acceptance criteria


Name of the software and version EDL wave maker software



Page 82 of 84

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D2 27 Manual of wave instrumentation survey of laboratories · D2.27 Manual of Wave instrumentation – Survey of laboratories Rev. [Revision Number, e.g. 01], 27-Mar-2015 Page 1