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interFoam: Added isotropic compression option

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This commit is contained in:
Henry
2013-11-29 16:55:18 +00:00
parent bb49d35619
commit 63da8af946
12 changed files with 76 additions and 39 deletions
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17
applications/solvers/multiphase/interFoam/alphaEqn.H
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@ -2,14 +2,15 @@
word alphaScheme("div(phi,alpha)"); word alphaScheme("div(phi,alpha)");
word alpharScheme("div(phirb,alpha)"); word alpharScheme("div(phirb,alpha)");
//surfaceScalarField phic(mag(phi/mesh.magSf())); // Standard face-flux compression coefficient
//phic = min(interface.cAlpha()*phic, max(phic)); surfaceScalarField phic(interface.cAlpha()*mag(phi/mesh.magSf()));
surfaceScalarField phic
( // Add the optional isotropic compression contribution
(0.5*interface.cAlpha()) if (icAlpha > 0)
*fvc::interpolate(volScalarField("tauc", fvc::surfaceSum(mag(phi)))) {
/mesh.magSf() phic *= (1.0 - icAlpha);
); phic += (interface.cAlpha()*icAlpha)*fvc::interpolate(mag(U));
}
// Do not compress interface at non-coupled boundary faces // Do not compress interface at non-coupled boundary faces
// (inlets, outlets etc.) // (inlets, outlets etc.)

1
applications/solvers/multiphase/interPhaseChangeFoam/alphaEqn.H
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@ -71,6 +71,7 @@
( (
geometricOneField(), geometricOneField(),
alpha1, alpha1,
tphiAlpha(),
tphiAlphaCorr(), tphiAlphaCorr(),
vDotvmcAlphal, vDotvmcAlphal,
( (

6
src/finiteVolume/cfdTools/general/include/alphaControls.H
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@ -18,3 +18,9 @@ bool alphaApplyPrevCorr
( (
alphaControls.lookupOrDefault<Switch>("alphaApplyPrevCorr", false) alphaControls.lookupOrDefault<Switch>("alphaApplyPrevCorr", false)
); );
// Isotropic compression coefficient
scalar icAlpha
(
alphaControls.lookupOrDefault<scalar>("icAlpha", 0)
);

12
tutorials/multiphase/LTSInterFoam/wigleyHull/0/U
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@ -15,21 +15,26 @@ FoamFile
} }
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Umean 1;
dimensions [0 1 -1 0 0 0 0]; dimensions [0 1 -1 0 0 0 0];
internalField uniform (1 0 0); internalField uniform ($Umean 0 0);
boundaryField boundaryField
{ {
inlet inlet
{ {
type fixedValue; type fixedValue;
value uniform (1 0 0); value $internalField;
} }
outlet outlet
{ {
type zeroGradient; type outletPhaseMeanVelocity;
alpha alpha.water;
Umean $Umean;
value $internalField;
} }
sides sides
@ -40,6 +45,7 @@ boundaryField
atmosphere atmosphere
{ {
type pressureInletOutletVelocity; type pressureInletOutletVelocity;
tangentialVelocity $internalField;
value uniform (0 0 0); value uniform (0 0 0);
} }

6
tutorials/multiphase/LTSInterFoam/wigleyHull/0/alpha.water.org
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@ -23,8 +23,8 @@ boundaryField
{ {
inlet inlet
{ {
type calculated; type fixedValue;
value uniform 0; value $internalField;
} }
outlet outlet
@ -41,7 +41,7 @@ boundaryField
{ {
type inletOutlet; type inletOutlet;
inletValue uniform 0; inletValue uniform 0;
value uniform 0; value $internalField;
} }
hull_wall hull_wall

8
tutorials/multiphase/LTSInterFoam/wigleyHull/0/k
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@ -24,7 +24,7 @@ boundaryField
inlet inlet
{ {
type fixedValue; type fixedValue;
value uniform 0.00015; value $internalField;
} }
outlet outlet
@ -40,14 +40,14 @@ boundaryField
atmosphere atmosphere
{ {
type inletOutlet; type inletOutlet;
inletValue uniform 0.00015; inletValue $internalField;
value uniform 0.00015; value $internalField;
} }
hull_wall hull_wall
{ {
type kqRWallFunction; type kqRWallFunction;
value uniform 0.00015; value $internalField;
} }
} }

4
tutorials/multiphase/LTSInterFoam/wigleyHull/0/nut
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@ -24,7 +24,7 @@ boundaryField
inlet inlet
{ {
type fixedValue; type fixedValue;
value uniform 5e-07; value $internalField;
} }
outlet outlet
@ -45,7 +45,7 @@ boundaryField
hull_wall hull_wall
{ {
type nutkWallFunction; type nutkWallFunction;
value uniform 0; value $internalField;
} }
} }

12
tutorials/multiphase/LTSInterFoam/wigleyHull/0/omega
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@ -23,14 +23,14 @@ boundaryField
inlet inlet
{ {
type fixedValue; type fixedValue;
value uniform 2; value $internalField;
} }
outlet outlet
{ {
type inletOutlet; type inletOutlet;
inletValue uniform 2; inletValue $internalField;
value uniform 2; value $internalField;
} }
outlet outlet
@ -46,14 +46,14 @@ boundaryField
atmosphere atmosphere
{ {
type inletOutlet; type inletOutlet;
inletValue uniform 2; inletValue $internalField;
value uniform 2; value $internalField;
} }
hull_wall hull_wall
{ {
type omegaWallFunction; type omegaWallFunction;
value uniform 2; value $internalField;
} }
} }

6
tutorials/multiphase/LTSInterFoam/wigleyHull/0/p_rgh
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@ -23,7 +23,7 @@ boundaryField
inlet inlet
{ {
type fixedFluxPressure; type fixedFluxPressure;
value uniform 0; value $internalField;
} }
outlet outlet
@ -45,13 +45,13 @@ boundaryField
rho rho; rho rho;
psi none; psi none;
gamma 1; gamma 1;
value uniform 0; value $internalField;
} }
hull_wall hull_wall
{ {
type fixedFluxPressure; type fixedFluxPressure;
value uniform 0; value $internalField;
} }
} }

2
tutorials/multiphase/LTSInterFoam/wigleyHull/system/controlDict
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@ -23,7 +23,7 @@ startTime 0;
stopAt endTime; stopAt endTime;
endTime 2000; endTime 1000;
deltaT 1; deltaT 1;

30
tutorials/multiphase/LTSInterFoam/wigleyHull/system/fvSolution
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@ -17,11 +17,21 @@ FoamFile
solvers solvers
{ {
alpha.water "alpha.water.*"
{ {
nAlphaCorr 1; nAlphaCorr 1;
nAlphaSubCycles 1; nAlphaSubCycles 1;
cAlpha 1; cAlpha 1;
icAlpha 0.25;
MULESCorr yes;
nLimiterIter 8;
alphaApplyPrevCorr true;
solver smoothSolver;
smoother symGaussSeidel;
tolerance 1e-8;
relTol 0;
} }
pcorr pcorr
@ -56,14 +66,14 @@ solvers
nCellsInCoarsestLevel 10; nCellsInCoarsestLevel 10;
cacheAgglomeration true; cacheAgglomeration true;
tolerance 1e-6; tolerance 1e-7;
relTol 0.01; relTol 0.01;
}; };
p_rghFinal p_rghFinal
{ {
$p_rgh; $p_rgh;
tolerance 1e-6; tolerance 1e-7;
relTol 0; relTol 0;
} }
@ -81,17 +91,18 @@ solvers
PIMPLE PIMPLE
{ {
momentumPredictor yes; momentumPredictor no;
nCorrectors 1; nCorrectors 1;
nNonOrthogonalCorrectors 0; nNonOrthogonalCorrectors 0;
maxCo 0.9; maxCo 5;
maxAlphaCo 0.2; maxAlphaCo 5;
nAlphaSweepIter 1;
rDeltaTSmoothingCoeff 0.1; rDeltaTSmoothingCoeff 0.05;
rDeltaTDampingCoeff 1; rDeltaTDampingCoeff 0.5;
nAlphaSweepIter 0;
nAlphaSpreadIter 0;
maxDeltaT 1; maxDeltaT 1;
} }
@ -102,6 +113,7 @@ relaxationFactors
} }
equations equations
{ {
".*" 1;
} }
} }

11
tutorials/multiphase/LTSInterFoam/wigleyHull/system/setFieldsDict
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@ -30,6 +30,17 @@ regions
volScalarFieldValue alpha.water 1 volScalarFieldValue alpha.water 1
); );
} }
// Set patch values (using ==)
boxToFace
{
box (-100 -100 -100) (100 100 0);
fieldValues
(
volScalarFieldValue alpha.water 1
);
}
); );