n IDAJ

n iconCFD

n iconCFD

n

1

n

n IDAJ CFD

n IDAJ

n ICON

2

3

IDAJ

220-8137

2-2-1-1

37F

1994 10 1

1,000

200 (2013 4 )

CAE

CAD/CAE

IDAJ-China

IDAJ-UK

IDAJ-Korea

Icon Technology & Process Consulting Ltd.

Ennova Technologies Inc.

6

n Icon Technology & Process Consulting Ltd. ICON

n OpenFOAM® Henry Weller

Gosman 1992 CFD

n VW 3 aeroFOAM

OepnFOAM®

n OpenFOAM® SnappyHex

n iconFOAMPro iconCFD 2009

n 2013 3 IDAJ

Ref: SAE 2009-01-0333

n iconCFD

n OpenFOAM

n CFD

n iconCFD

n IDAJ

n

n

n

7

8

n iconCFD

n ICON OpenFOAM

IDAJ ICON (

GPL

n

n GUI GPL

n

n

n

n

n

•8

9

n OpenFOAM®

nOpenFOAM ESI Group OpenCFD

C++

GPL2

•9

fvVectorMatrix UEqn

(

fvm::ddt(U)

+ fvm::div(phi, U)

- fvm::laplacian(nu, U)

);

solve(UEqn == -fvc::grad(p));)(

)(

)(

)(

i

i

i

i

pidiv

ugraddiv

vudiv

t

u

=

−

+∂

∂

ρνρ

ρ

r

10

n CFD

n

n

n

n

n

n

n

n

n

•10

n

n

n

n

n

n

n

n

n

n

11

12

GUI

13

n

n

IDAJ

Open Source code

14

l

l

l

l

l

l

l

l

l

l

l

l

iconCFD

15

iconCFD

l

l

n iconCFD

n iconCFD Process

n ennovaCFD

n

n iconCFD Mesh

n iconCFD Core/Cold

n iconCFD Thermal

n iconCFD VOF

16

17

18

n

n

n

n

n

n

19

20

CFD

iconCFD

21

Snapping LayersRefinement

22

23

With kind permission of:

Koenigsegg Automotive AB

www.koenigsegg.com

24

n

•

•

•

With kind permission of:

Koenigsegg Automotive AB

www.koenigsegg.com

25

26

n

n

n

n

n

n

With kind permission of:

Koenigsegg Automotive AB

www.koenigsegg.com

n

n MRF

n / iconCFD Move

n

27

n

n MRF

n / iconCFD Move

28

n

n MRF

29

n

n

n

n

n

30

n

n

n

nRANS

31

n

n

n

n

32

33

n

n iconCFD

n 1,558,909

n 3

34

n iconCFD

n

n

n

nRANS

35

36

n Cd

37

n iconCFD

n PQ

n

n

nRANS

nMRF

38

39

n

40

n iconCFD

41

n SPL

n

∂

∂

∂∂

−

∂∂

=i

j

j

i

i

i

x

u

x

u

x

uQ

2

2

1

42

n Wake

43

n SPL (Red: Calc, Green: Exp)

44

n SPL (Red: Calc, Green: Exp)

45

n SPL (Red: Calc, Green: Exp)

46

n

n 9,023,168

n PISO

n 145.7[Hr] @ 24core

47

n

n

n

48

n SPL

n U=26, 30, 34[m/s]

60

70

80

90

100

110

120

130

140

150

160

10 100 1000

SPL[dB]

[Hz]

U26 U30 U34

49

n

n 3,893,898

n PISO

n SpalartAllmaras

n 27.6[Hr] @ 60core

n

n

n

n 5,467

n 0.3MW/m2

n

50

51

n OpenFOAM iconCFD

n iconCFD

52