OpenFoamのサンプル確認(パラメータやキーワードの覚書)です。
チュートリアルフォルダ:チュートリアル場所(windows)
次ページ:メッシュの置き換え
ベース
バージョン : Windows版(OpenFOAM-v2106-windows-mingw.exe)
引用元
<チュートリアルフォルダ>\multiphase\interFoam\laminar\damBreak\damBreak
結果図

気相、液相のモデルになります。
作業
基本的な流れはT703 OpenFoam tipsと同じです。(または作業)
//チュートリアルからサンプルをコピーしておきます。// //0.origから0へ(.org削除) //コマンド:メッシュ作成 blockMesh //コマンド実行 setFields //計算実行// interFoam //ParaView用VTK変換// foamToVTK
モデル
設定値の抜粋まとめ
全体構造
//初期フォルダ・ファイル構成
damBreak
├ 0.orig
│ ├ alpha.water
│ ├ p_rgh
│ └ U
├ constant
│ ├ g
│ ├ transportProperties :物性値
│ └ turbulenceProperties
├ system
│ ├ blockMeshDict :ブロックメッシュ定義
│ ├ controlDict :解析ジョブ設定
│ ├ decomposeParDict :未使用(win)
│ ├ fvSchemes :ソルバー設定
│ ├ fvSolution :ソルバー設定
│ ├ sampling
│ └ setFieldsDict
├ Allclean
└ Allrun
0.orig
設定確認 alpha.water
dimensions [0 0 0 0 0 0 0];
internalField uniform 0;
boundaryField
{
leftWall
{
type zeroGradient;
}
rightWall
{
type zeroGradient;
}
lowerWall
{
type zeroGradient;
}
atmosphere
{
type inletOutlet;
inletValue uniform 0;
value uniform 0;
}
defaultFaces
{
type empty;
}
}
p_rgh
dimensions [1 -1 -2 0 0 0 0];
internalField uniform 0;
boundaryField
{
leftWall
{
type fixedFluxPressure;
value uniform 0;
}
rightWall
{
type fixedFluxPressure;
value uniform 0;
}
lowerWall
{
type fixedFluxPressure;
value uniform 0;
}
atmosphere
{
type totalPressure;
p0 uniform 0;
}
defaultFaces
{
type empty;
}
}
U
dimensions [0 1 -1 0 0 0 0];
internalField uniform (0 0 0);
boundaryField
{
leftWall
{
type noSlip;
}
rightWall
{
type noSlip;
}
lowerWall
{
type noSlip;
}
atmosphere
{
type pressureInletOutletVelocity;
value uniform (0 0 0);
}
defaultFaces
{
type empty;
}
}
constant
g
dimensions [0 1 -2 0 0 0 0]; value (0 -9.81 0);
設定確認 transportProperties
phases (water air);
water
{
transportModel Newtonian;
nu 1e-06;
rho 1000;
}
air
{
transportModel Newtonian;
nu 1.48e-05;
rho 1;
}
sigma 0.07;
turbulenceProperties
simulationType laminar;
system
設定確認 blockMeshDict
scale 0.146;
vertices
(
(0 0 0)
(2 0 0)
(2.16438 0 0)
(4 0 0)
(0 0.32876 0)
(2 0.32876 0)
(2.16438 0.32876 0)
(4 0.32876 0)
(0 4 0)
(2 4 0)
(2.16438 4 0)
(4 4 0)
(0 0 0.1)
(2 0 0.1)
(2.16438 0 0.1)
(4 0 0.1)
(0 0.32876 0.1)
(2 0.32876 0.1)
(2.16438 0.32876 0.1)
(4 0.32876 0.1)
(0 4 0.1)
(2 4 0.1)
(2.16438 4 0.1)
(4 4 0.1)
);
blocks
(
hex (0 1 5 4 12 13 17 16) (23 8 1) simpleGrading (1 1 1)
hex (2 3 7 6 14 15 19 18) (19 8 1) simpleGrading (1 1 1)
hex (4 5 9 8 16 17 21 20) (23 42 1) simpleGrading (1 1 1)
hex (5 6 10 9 17 18 22 21) (4 42 1) simpleGrading (1 1 1)
hex (6 7 11 10 18 19 23 22) (19 42 1) simpleGrading (1 1 1)
);
edges
(
);
boundary
(
leftWall
{
type wall;
faces
(
(0 12 16 4)
(4 16 20 8)
);
}
rightWall
{
type wall;
faces
(
(7 19 15 3)
(11 23 19 7)
);
}
lowerWall
{
type wall;
faces
(
(0 1 13 12)
(1 5 17 13)
(5 6 18 17)
(2 14 18 6)
(2 3 15 14)
);
}
atmosphere
{
type patch;
faces
(
(8 20 21 9)
(9 21 22 10)
(10 22 23 11)
);
}
);
mergePatchPairs
(
);
設定確認 controlDict
application interFoam; startFrom startTime; startTime 0; stopAt endTime; endTime 1; deltaT 0.001; writeControl adjustable; writeInterval 0.05; purgeWrite 0; writeFormat ascii; writePrecision 6; writeCompression off; timeFormat general; timePrecision 6; runTimeModifiable yes; adjustTimeStep yes; maxCo 1; maxAlphaCo 1; maxDeltaT 1; #sinclude "sampling"
decomposeParDict
numberOfSubdomains 4;
method simple;
coeffs
{
n (2 2 1);
}
設定確認 fvSchemes
ddtSchemes
{
default Euler;
}
gradSchemes
{
default Gauss linear;
}
divSchemes
{
div(rhoPhi,U) Gauss linearUpwind grad(U);
div(phi,alpha) Gauss vanLeer;
div(phirb,alpha) Gauss linear;
div(((rho*nuEff)*dev2(T(grad(U))))) Gauss linear;
}
laplacianSchemes
{
default Gauss linear corrected;
}
interpolationSchemes
{
default linear;
}
snGradSchemes
{
default corrected;
}
設定確認 fvSolution
solvers
{
"alpha.water.*"
{
nAlphaCorr 2;
nAlphaSubCycles 1;
cAlpha 1;
MULESCorr yes;
nLimiterIter 5;
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-8;
relTol 0;
}
"pcorr.*"
{
solver PCG;
preconditioner DIC;
tolerance 1e-5;
relTol 0;
}
p_rgh
{
solver PCG;
preconditioner DIC;
tolerance 1e-07;
relTol 0.05;
}
p_rghFinal
{
$p_rgh;
relTol 0;
}
U
{
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-06;
relTol 0;
}
}
PIMPLE
{
momentumPredictor no;
nOuterCorrectors 1;
nCorrectors 3;
nNonOrthogonalCorrectors 0;
}
relaxationFactors
{
equations
{
".*" 1;
}
}
sampling
functions
{
sampleSets
{
type sets;
libs (sampling);
writeControl timeStep;
writeInterval 1;
setFormat vtk;
interpolationScheme cellPointFace;
fields ( alpha.water );
sets
(
gauge_1
{
type face;
axis y;
start (0.02 0.20 0.005);
end (0.02 0.25 0.005);
nPoints 100;
}
gauge_2
{
type face;
axis y;
start (0.2 0.03 0.005);
end (0.2 0.55 0.005);
nPoints 100;
}
);
}
}
設定確認 setFieldsDict
defaultFieldValues
(
volScalarFieldValue alpha.water 0
);
regions
(
boxToCell
{
box (0 0 -1) (0.1461 0.292 1);
fieldValues
(
volScalarFieldValue alpha.water 1
);
}
);
その他
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