This document summarizes the results of running all tutorial cases in OpenFOAM-v1806. Over 300 cases were run and the results were compared to OpenFOAM-v1712. Some cases saw significant speed improvements while others slowed down, with unclear reasons in some cases. Mesh generation times also improved in many cases when using snappyHexMesh. New features were identified and animations were included to illustrate several cases. In conclusion, the number of tutorial cases increased from v1706 to v1812 and meshing and solver speeds varied significantly between versions.

1. OpenFOAM-v1806
標準チュートリアル/Allrun
「やってみた17th」の紹介
オープンCAEコンサルタント
OCSE^2 代表 野村悦治
2018/9/28 第65回オープンCAE勉強会＠岐阜
1
2017/7/2 計算開始
animGIF http://mogura7.zenno.info/~et/wordpress/ocse/?p=3039

2. 全体サマリー
今回
clickするとデータシートが見れます。
2
http://bit.ly/2NP13oc

3. 全体サマリー（カテゴリー）
3

4. testLoopReport
4
エラー無し

5. 動作しなかったcase
5
原因不明、手動実行OK
mesh/snappyHexMesh/aerofoilNACA0012_directionalRefinement
incompressible/simpleFoam/turbulentFlatPlate
sh : dash ⇒ bash にてOK
verificationAndValidation/schemes/divergenceExample

6. 異常終了ケースサマリ
【原因】
6
異常終了
Allrun対象外

7. ケースの変遷
7
❏ 新規 ❏ 廃止：無し

8. combustion/coldEngineFoam
/freePiston
8
0.13
Φ 0.1
pistonPositionTime table
(
(0 0.13)
(0.020 0.013)
);
T=300 K
animGIF

9. combustion/reactingFoam
/chockedNozzle
9
https://www.openfoam.com/releases/openfoam-v1806/boundary-conditions.php#boundary-conditions-wave-outlet-mach
New outlet Mach number condition
animGIF

10. combustion/reactingFoam
/membrane
10
CH4(0.5)
N2(0.5)
1 m/s
O2(0.21)
N2(0.79)
1 m/s
animGIF

11. compressible/.../aerofoilNACA0012
11
rhoPimpleFoam
rhoSimpleFoam

12. （参考）incompressible/simpleFoam/
/airFoil2D
12

13. heatTransfer/chtMultiRegionFoam
/ reverseBurner
13
animGIF

14. 14

15. incompressible/pimpleFoam/LES
/surfaceMountedCube/fullCase
15

16. 16
https://openfoam.com/documentation/cpp-guide/html/verification-validation-turbulent-surface-mounted-cube.html

17. incompressible/simpleFoam
/backwardFacingStep2D
17

18. incompressible/simpleFoam
/squareBend
18
https://www.openfoam.com/releases/openfoam-v1806/post-processing.php#post-processing-sampling
Improved sampling options
New uniformity index
https://www.openfoam.com/releases/openfoam-v1806/post-processing.php#post-processing-uniformity-index
compressible
/rhoSimpleFoam

19. incompressible/simpleFoam
/turbulentFlatPlate
19

20. mesh/moveDynamicMesh
/twistingColumn
20
animGIF

21. mesh/snappyHexMesh
/aerofoilNACA0012_directionRefinement
21
https://www.openfoam.com/releases/openfoam-v1806/pre-processin
g.php#pre-processing-meshing-directional-refinement
snappyHexMesh New directional refinement

22. multiphase/compressibleInterFoam/
laminar/climbingRod
22

23. multiphase/
icoReactingMultiphaseInterFoam/
solidMelting2D
23
animGIF

24. multiphase/
icoReactingMultiphaseInterFoam
/evaporationMultiCompornent
24
0.02
(120)
0.09
(180)
0.2
(1)
寸法
(分割数)
T=365 K
animGIF

25. multiphase/
icoReactingMultiphaseInterFoam
/interMultiphaseMultiComponent
25
mercury
oil
multiphaseInterFoam
gas
vapor(0.3)
CO2(0.2)
air(0.5)
liquid
O2(0.01)
water(0.99)
animGIFanimGIF

26. multiphase/interFoam/laminar
/waveExampleIrregularMultiDirection
26
https://www.openfoam.com/releases/openfoam-v1806/boundary-conditions.php#boundary-co
nditions-wave-generation
New wave modelling: irregular waves

27. 27

28. multiphase/interFoam/laminar
/waveMangroveInteraction
28
https://www.openfoam.com/release
s/openfoam-v1806/solver-and-physi
cs.php#solver-and-physics-wave-m
angrove-interaction
animGIF

29. multiphase/interIsoFoam
/damBrakeWithObstacle
29
animGIF

30. multiphase/interIsoFoam
/discInConstantFlowCyclicBCs
30
animGIF

31. multiphase/interIsoFoam
/sloshingTank2D
31
ExecutionTime = 140.96 s
ClockTime = 143 s
ExecutionTime = 67.39 s
ClockTime = 69 s
interFoaminterIsoFoam
別マシン
にて比較
animGIFanimGIF

32. multiphase/overInterDyMFoam
/boatAndPropeller
32
animGIF

33. 33

34. catalyst
34
https://www.openfoam.com/releases/openfoam-v1806/post-proces
sing.php#post-processing-paraview-catalyst
New In-situ processing with ParaView Catalyst
シミュレーション終了時の後処理ではなく、ParaView
の機能を活用してシミュレーションと同時に視覚化結
果を生成することが可能になりました。

35. Paraview Catalyst
35

36. multiphase/overPimpleDyMFoam
/twoSimpleRotors
36
animGIF

37. 37

38. 38
catalyst/heatTransfer
/chtMultiRegionFoam/multiRegionHeater

39. 39
catalyst/lagrangian/
coalChemistryFoam/simplifiedSiwek

40. 40

41. 41
catalyst/finiteArea
/sphereSurfactantFoam/sphereTransport

42. 42

43. 計算速度比較
（v1712比）
43
lagrangian/reactingParcelFoam
/hotBoxes

44. 44
multiphase/interFoam/RAS/mot
orBike
compressible/rhoPimpleF
oam/RAS/annularThermal
Mixer
multiphase/compressibleInterF
oam/laminar/depthCharge3D
multiphase/interPhaseChange
Foam/cavitatingBullet

45. 45
incompressible/simpleFoam
/lumpedPoinMotion/building
/transient
incompressible/simpleFoam
/turbineSiting
combustion/chemFoam/ic8h18

46. 46
multiphase/interIsoFoam
/standingWave
multiphase/driftFluxFoam
/RAS/dahl
incompressible/simpleFoam
/windAroundBuildings

47. 47

48. 48
compressible/rhoPimpleFoam
/RAS/mixerVessel2D

49. 49
計算速度が大きく変化したケース
遅くなった
速くなった
理由あり

50. メッシュ作成時間比較
50
cfMesh/pMesh/multipleOrifices
v1806
v1712

51. 51
multiphase/interFoam
/RAS/DTCHullMoving
multiphase/interFoam
/RAS/mixerVesselAMI
compressible/rhoSimpleFoam
/injectorPipe
multiphase/interFoam
/RAS/DTCHull

52. 52
incompressible/simpleFoam
/LES/motorBike
multiphase
/interPhaseChangeDyMFoam
/propeller
incompressible/pimpleFoam
/RAS/propeller

53. 53
multiphase
/interPhaseChangeFoam
/cavitatingBullet
incompressible/simpleFoam
rotorDisk
incompressible/simpleFoam
/lumpedPoinMotion/building/steady
combustion/XiDyMFoam
/annularCombustorTurbine
incompressible/simpleFoam
/windAroundBuildings
compressible/rhoPimpleFoam
/RAS/annularThermalMixer
incompressible/simpleFoam
/RAS/wingMotion
/wingMotion_snappyHexMesh
mesh/moveDynamicMesh
/box_snappyHexMesh
cfMesh/cartesianMesh
/multipleOrifices
v1806
v1712

54. 54
heatTransfer
/buoyantBoussinesqSimpleFoam
/iglooWithFridges
multiphase/interFoam
/RAS/motorBike
multiphase/interFoam
/laminar/sloshingCylinder
incompressible/simpleFoam
/turbineSiting
lagrangian/MPPICFoam
/cyclone
incompressible/overSimpleFoam
/aeroFoil/aeroFoil_snappyHexMeshcfMesh/cartesianMesh
/elbow_90degree
v1806
v1712
combustion/fireFoam
/LES/compartmentFire

55. 55
計算速度が大きく変化したケース（メッシュ）
遅くなった
速くなった
理由不明

56. ...DyMFoam ⇒ ...Foam
56
multiphase/interFoam
/RAS/motorBike
pimpleDyMFoam
interDyMFoam
rhoPimpleDyMFoam

57. 57
incompressible/simpleFoam
/lumpedPoinMotion/building
/transient

58. まとめ
❏ OpenFOAM-v1712 の全チュートリアルを実行した
❏ Ver(v1706)比
❏ ケース数が増加（300超）（+28）（+29 : v1706⇒v1712）
❏ 速度比のバラツキ大
❏ snappyHexMesh 高速化
❏ cfMeshで一部不具合？
58

59. バックナンバー
59
http://mogura7.zenno.info/~et/wordpress/ocse/?p=2499

60. Let’s smart OpenCAE
presented by60

61. 61

62. 62

63. 63

64. 64

65. 65