Foam::tmp<Foam::fvMatrix<Type>> Foam::fvm::SuSp ( const DimensionedField<scalar, volMesh>& susp, const GeometricField<Type, fvPatchField, volMesh>& vf ) { const fvMesh& mesh = vf.mesh(); tmp<fvMatrix<Type>> tfvm ( new fvMatrix<Type> ( vf, dimVol*susp.dimensions()*vf.dimensions() ) ); fvMatrix<Type>& fvm = tfvm.ref(); fvm.diag() += mesh.V()*max(susp.field(), scalar(0)); fvm.source() -= mesh.V()*min(susp.field(), scalar(0)) *vf.primitiveField(); return tfvm; }
tmp<GeometricField<Type, fvPatchField, volMesh>> EulerD2dt2Scheme<Type>::fvcD2dt2 ( const GeometricField<Type, fvPatchField, volMesh>& vf ) { dimensionedScalar rDeltaT2 = 4.0/sqr(mesh().time().deltaT() + mesh().time().deltaT0()); IOobject d2dt2IOobject ( "d2dt2("+vf.name()+')', mesh().time().timeName(), mesh(), IOobject::NO_READ, IOobject::NO_WRITE ); scalar deltaT = mesh().time().deltaTValue(); scalar deltaT0 = mesh().time().deltaT0Value(); scalar coefft = (deltaT + deltaT0)/(2*deltaT); scalar coefft00 = (deltaT + deltaT0)/(2*deltaT0); scalar coefft0 = coefft + coefft00; if (mesh().moving()) { scalar halfRdeltaT2 = rDeltaT2.value()/2.0; scalarField VV0 = mesh().V() + mesh().V0(); scalarField V0V00 = mesh().V0() + mesh().V00(); return tmp<GeometricField<Type, fvPatchField, volMesh>> ( new GeometricField<Type, fvPatchField, volMesh> ( d2dt2IOobject, mesh(), rDeltaT2.dimensions()*vf.dimensions(), halfRdeltaT2* ( coefft*VV0*vf.primitiveField() - (coefft*VV0 + coefft00*V0V00) *vf.oldTime().primitiveField() + (coefft00*V0V00)*vf.oldTime().oldTime().primitiveField() )/mesh().V(), rDeltaT2.value()* ( coefft*vf.boundaryField() - coefft0*vf.oldTime().boundaryField() + coefft00*vf.oldTime().oldTime().boundaryField() ) ) ); } else { return tmp<GeometricField<Type, fvPatchField, volMesh>> ( new GeometricField<Type, fvPatchField, volMesh> ( d2dt2IOobject, rDeltaT2* ( coefft*vf - coefft0*vf.oldTime() + coefft00*vf.oldTime().oldTime() ) ) ); } }
tmp<GeometricField<Type, fvPatchField, volMesh>> EulerD2dt2Scheme<Type>::fvcD2dt2 ( const volScalarField& rho, const GeometricField<Type, fvPatchField, volMesh>& vf ) { dimensionedScalar rDeltaT2 = 4.0/sqr(mesh().time().deltaT() + mesh().time().deltaT0()); IOobject d2dt2IOobject ( "d2dt2("+rho.name()+','+vf.name()+')', mesh().time().timeName(), mesh(), IOobject::NO_READ, IOobject::NO_WRITE ); scalar deltaT = mesh().time().deltaTValue(); scalar deltaT0 = mesh().time().deltaT0Value(); scalar coefft = (deltaT + deltaT0)/(2*deltaT); scalar coefft00 = (deltaT + deltaT0)/(2*deltaT0); if (mesh().moving()) { scalar halfRdeltaT2 = 0.5*rDeltaT2.value(); scalar quarterRdeltaT2 = 0.25*rDeltaT2.value(); const scalarField VV0rhoRho0 ( (mesh().V() + mesh().V0()) * (rho.primitiveField() + rho.oldTime().primitiveField()) ); const scalarField V0V00rho0Rho00 ( (mesh().V0() + mesh().V00()) * ( rho.oldTime().primitiveField() + rho.oldTime().oldTime().primitiveField() ) ); return tmp<GeometricField<Type, fvPatchField, volMesh>> ( new GeometricField<Type, fvPatchField, volMesh> ( d2dt2IOobject, mesh(), rDeltaT2.dimensions()*rho.dimensions()*vf.dimensions(), quarterRdeltaT2* ( coefft*VV0rhoRho0*vf.primitiveField() - (coefft*VV0rhoRho0 + coefft00*V0V00rho0Rho00) *vf.oldTime().primitiveField() + (coefft00*V0V00rho0Rho00) *vf.oldTime().oldTime().primitiveField() )/mesh().V(), halfRdeltaT2* ( coefft *(rho.boundaryField() + rho.oldTime().boundaryField()) *vf.boundaryField() - ( coefft *( rho.boundaryField() + rho.oldTime().boundaryField() ) + coefft00 *( rho.oldTime().boundaryField() + rho.oldTime().oldTime().boundaryField() ) )*vf.oldTime().boundaryField() + coefft00 *( rho.oldTime().boundaryField() + rho.oldTime().oldTime().boundaryField() )*vf.oldTime().oldTime().boundaryField() ) ) ); } else { dimensionedScalar halfRdeltaT2 = 0.5*rDeltaT2; const volScalarField rhoRho0(rho + rho.oldTime()); const volScalarField rho0Rho00(rho.oldTime() +rho.oldTime().oldTime()); return tmp<GeometricField<Type, fvPatchField, volMesh>> ( new GeometricField<Type, fvPatchField, volMesh> ( d2dt2IOobject, halfRdeltaT2* ( coefft*rhoRho0*vf - (coefft*rhoRho0 + coefft00*rho0Rho00)*vf.oldTime() + coefft00*rho0Rho00*vf.oldTime().oldTime() ) ) ); } }