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compressibleTwoPhaseEulerFoam: Updated virtual-mass formulation

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This commit is contained in:
Henry
2012-03-15 11:55:03 +00:00
parent 0d0dfbafe3
commit db3e9c00d2
2 changed files with 21 additions and 12 deletions
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26
applications/solvers/multiphase/compressibleTwoPhaseEulerFoam/UEqns.H
View File

@ -28,12 +28,17 @@ fvVectorMatrix U2Eqn(U2, U2.dimensions()*dimVol/dimTime);
U1Eqn = U1Eqn =
( (
(scalar(1) + Cvm*rho2*alpha2/rho1)* fvm::ddt(alpha1, U1)
+ fvm::div(alphaPhi1, U1)
- fvm::Sp(fvc::ddt(alpha1) + fvc::div(alphaPhi1), U1)
+ Cvm*rho2*alpha1*alpha2/rho1*
( (
fvm::ddt(alpha1, U1) fvm::ddt(U1)
+ fvm::div(alphaPhi1, U1) + fvm::div(phi1, U1)
- fvm::Sp(fvc::ddt(alpha1) + fvc::div(alphaPhi1), U1) - fvm::Sp(fvc::div(phi1), U1)
) )
- fvm::laplacian(alpha1*nuEff1, U1) - fvm::laplacian(alpha1*nuEff1, U1)
+ fvc::div(alpha1*Rc1) + fvc::div(alpha1*Rc1)
== ==
@ -54,12 +59,17 @@ fvVectorMatrix U2Eqn(U2, U2.dimensions()*dimVol/dimTime);
U2Eqn = U2Eqn =
( (
(scalar(1) + Cvm*rho2*alpha1/rho2)* fvm::ddt(alpha2, U2)
+ fvm::div(alphaPhi2, U2)
- fvm::Sp(fvc::ddt(alpha2) + fvc::div(alphaPhi2), U2)
+ Cvm*rho2*alpha1*alpha2/rho2*
( (
fvm::ddt(alpha2, U2) fvm::ddt(U2)
+ fvm::div(alphaPhi2, U2) + fvm::div(phi2, U2)
- fvm::Sp(fvc::ddt(alpha2) + fvc::div(alphaPhi2), U2) - fvm::Sp(fvc::div(phi2), U2)
) )
- fvm::laplacian(alpha2*nuEff2, U2) - fvm::laplacian(alpha2*nuEff2, U2)
+ fvc::div(alpha2*Rc2) + fvc::div(alpha2*Rc2)
== ==

7
applications/solvers/multiphase/compressibleTwoPhaseEulerFoam/pEqn.H
View File

@ -37,6 +37,9 @@
surfaceScalarField phiHbyA("phiHbyA", alpha1f*phiHbyA1 + alpha2f*phiHbyA2); surfaceScalarField phiHbyA("phiHbyA", alpha1f*phiHbyA1 + alpha2f*phiHbyA2);
HbyA1 += (1.0/rho1)*rAU1*dragCoeff*U2;
HbyA2 += (1.0/rho2)*rAU2*dragCoeff*U1;
surfaceScalarField Dp surfaceScalarField Dp
( (
"Dp", "Dp",
@ -110,10 +113,7 @@
p.relax(); p.relax();
mSfGradp = pEqnIncomp.flux()/Dp; mSfGradp = pEqnIncomp.flux()/Dp;
volVectorField U10 = U1;
U1 = HbyA1 U1 = HbyA1
+ (1.0/rho1)*rAU1*dragCoeff*U2
+ fvc::reconstruct + fvc::reconstruct
( (
rAlphaAU1f*(g & mesh.Sf()) rAlphaAU1f*(g & mesh.Sf())
@ -122,7 +122,6 @@
U1.correctBoundaryConditions(); U1.correctBoundaryConditions();
U2 = HbyA2 U2 = HbyA2
+ (1.0/rho2)*rAU2*dragCoeff*U10
+ fvc::reconstruct + fvc::reconstruct
( (
rAlphaAU2f*(g & mesh.Sf()) rAlphaAU2f*(g & mesh.Sf())