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ENH: surface film model updates

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This commit is contained in:
andy
2014-03-31 16:49:43 +01:00
committed by Andrew Heather
parent 5fecd2b5dc
commit 94519b46b8
2 changed files with 13 additions and 11 deletions
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14
src/regionModels/surfaceFilmModels/submodels/thermo/filmViscosityModel/thixotropicViscosity/thixotropicViscosity.C
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@ -2,7 +2,7 @@
========= | ========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | \\ / O peration |
\\ / A nd | Copyright (C) 2013 OpenFOAM Foundation \\ / A nd | Copyright (C) 2013-2014 OpenFOAM Foundation
\\/ M anipulation | \\/ M anipulation |
------------------------------------------------------------------------------- -------------------------------------------------------------------------------
License License
@ -64,19 +64,19 @@ void thixotropicViscosity::updateMu()
const dimensionedScalar mSMALL("SMALL", dimMass, ROOTVSMALL); const dimensionedScalar mSMALL("SMALL", dimMass, ROOTVSMALL);
const volScalarField deltaMass("deltaMass", max(m0, film.deltaMass())); const volScalarField deltaMass("deltaMass", max(m0, film.deltaMass()));
const volScalarField filmMass("filmMass", film.netMass() + mSMALL); const volScalarField filmMass("filmMass", film.netMass() + mSMALL);
const volScalarField mask(pos(film.delta() - film.deltaSmall()));
// weighting field to blend new and existing mass contributions // weighting field to blend new and existing mass contributions
const volScalarField w const volScalarField w
( (
"w", "w",
max(scalar(0.0), min(scalar(1.0), deltaMass/filmMass)) max(scalar(0.0), min(scalar(1.0), deltaMass/(deltaMass + filmMass)))
); );
// evaluate thixotropic viscosity // set new viscosity
volScalarField muThx("muThx", muInf_/(sqr(1.0 - K_*lambda_) + ROOTVSMALL)); mu_ =
mask*muInf_/(sqr(1.0 - K_*(1.0 - w)*lambda_) + ROOTVSMALL)
// set new viscosity based on weight field + (1 - mask)*muInf_;
mu_ = w*muInf_ + (1.0 - w)*muThx;
mu_.correctBoundaryConditions(); mu_.correctBoundaryConditions();
} }

10
src/regionModels/surfaceFilmModels/thermoSingleLayer/thermoSingleLayer.C
View File

@ -2,7 +2,7 @@
========= | ========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | \\ / O peration |
\\ / A nd | Copyright (C) 2011-2013 OpenFOAM Foundation \\ / A nd | Copyright (C) 2011-2014 OpenFOAM Foundation
\\/ M anipulation | \\/ M anipulation |
------------------------------------------------------------------------------- -------------------------------------------------------------------------------
License License
@ -260,10 +260,12 @@ tmp<fvScalarMatrix> thermoSingleLayer::q(volScalarField& hs) const
volScalarField htcst(htcs_->h()); volScalarField htcst(htcs_->h());
volScalarField htcwt(htcw_->h()); volScalarField htcwt(htcw_->h());
forAll(alpha_, i) const volScalarField mask(pos(delta_ - deltaSmall_));
forAll(mask, i)
{ {
htcst[i] *= max(alpha_[i], ROOTVSMALL); htcst[i] *= max(mask[i], ROOTVSMALL);
htcwt[i] *= max(alpha_[i], ROOTVSMALL); htcwt[i] *= max(mask[i], ROOTVSMALL);
} }
htcst.correctBoundaryConditions(); htcst.correctBoundaryConditions();