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ENH: Changes to input for the PDR models

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This commit is contained in:
sergio
2012-02-17 17:31:46 +00:00
parent 10e8490d21
commit e75a5571a5
10 changed files with 101 additions and 35 deletions
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2
applications/solvers/combustion/PDRFoam/PDRModels/dragModels/PDRDragModel/PDRDragModel.C
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@ -81,7 +81,7 @@ bool Foam::PDRDragModel::read(const dictionary& PDRProperties)
{
PDRDragModelCoeffs_ = PDRProperties.subDict(type() + "Coeffs");
PDRDragModelCoeffs_.lookup("PDRDragModel") >> on_;
PDRDragModelCoeffs_.lookup("drag") >> on_;
return true;
}

59
applications/solvers/combustion/PDRFoam/PDRModels/dragModels/basic/basic.C
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@ -90,15 +90,67 @@ Foam::PDRDragModels::basic::~basic()
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
Foam::tmp<Foam::volSymmTensorField> Foam::PDRDragModels::basic::Dcu() const
{
tmp<volSymmTensorField> tDragDcu
(
new volSymmTensorField
(
IOobject
(
"tDragDcu",
U_.mesh().time().constant(),
U_.mesh(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
U_.mesh(),
dimensionedSymmTensor
(
"zero",
dimMass/dimTime/pow(dimLength, 3),
pTraits<symmTensor>::zero
),
zeroGradientFvPatchSymmTensorField::typeName
)
);
volSymmTensorField& DragDcu = tDragDcu();
if (on_)
{
const volScalarField& betav =
U_.db().lookupObject<volScalarField>("betav");
return (0.5*rho_)*CR_*mag(U_) + (Csu*I)*betav*turbulence_.muEff()*sqr(Aw_);
DragDcu = (0.5*rho_)*CR_*mag(U_) + (Csu*I)*betav*turbulence_.muEff()*sqr(Aw_);
}
return tDragDcu;
}
Foam::tmp<Foam::volScalarField> Foam::PDRDragModels::basic::Gk() const
{
tmp<volScalarField> tGk
(
new volScalarField
(
IOobject
(
"tGk",
U_.mesh().time().constant(),
U_.mesh(),
IOobject::NO_READ,
IOobject::NO_WRITE
),
U_.mesh(),
dimensionedScalar("zero", dimMass/dimLength/pow(dimTime, 3), 0.0),
zeroGradientFvPatchVectorField::typeName
)
);
volScalarField& Gk = tGk();
if (on_)
{
const volScalarField& betav =
U_.db().lookupObject<volScalarField>("betav");
@ -106,11 +158,14 @@ Foam::tmp<Foam::volScalarField> Foam::PDRDragModels::basic::Gk() const
const volSymmTensorField& CT =
U_.db().lookupObject<volSymmTensorField>("CT");
return
Gk =
(0.5*rho_)*mag(U_)*(U_ & CT & U_)
+ Csk*betav*turbulence_.muEff()*sqr(Aw_)*magSqr(U_);
}
return tGk;
}
bool Foam::PDRDragModels::basic::read(const dictionary& PDRProperties)
{

11
applications/solvers/combustion/PDRFoam/XiModels/XiEqModels/Gulder/Gulder.C
View File

@ -50,7 +50,12 @@ Foam::XiEqModels::Gulder::Gulder
:
XiEqModel(XiEqProperties, thermo, turbulence, Su),
XiEqCoef_(readScalar(XiEqModelCoeffs_.lookup("XiEqCoef"))),
SuMin_(0.01*Su.average())
SuMin_(0.01*Su.average()),
uPrimeCoef_(readScalar(XiEqModelCoeffs_.lookup("uPrimeCoef"))),
subGridSchelkin_
(
readBool(XiEqModelCoeffs_.lookup("subGridSchelkin"))
)
{}
@ -67,9 +72,9 @@ Foam::tmp<Foam::volScalarField> Foam::XiEqModels::Gulder::XiEq() const
volScalarField up(sqrt((2.0/3.0)*turbulence_.k()));
const volScalarField& epsilon = turbulence_.epsilon();
if (subGridSchelkin())
if (subGridSchelkin_)
{
up.internalField() += calculateSchelkinEffect();
up.internalField() += calculateSchelkinEffect(uPrimeCoef_);
}
volScalarField tauEta(sqrt(mag(thermo_.muu()/(thermo_.rhou()*epsilon))));

6
applications/solvers/combustion/PDRFoam/XiModels/XiEqModels/Gulder/Gulder.H
View File

@ -61,6 +61,12 @@ class Gulder
//- Minimum laminar burning velocity
const dimensionedScalar SuMin_;
//- Schelkin effect Model constant
scalar uPrimeCoef_;
//- Use sub-grid Schelkin effect
bool subGridSchelkin_;
// Private Member Functions

9
applications/solvers/combustion/PDRFoam/XiModels/XiEqModels/SCOPEXiEq/SCOPEXiEq.C
View File

@ -53,6 +53,11 @@ Foam::XiEqModels::SCOPEXiEq::SCOPEXiEq
XiEqExp_(readScalar(XiEqModelCoeffs_.lookup("XiEqExp"))),
lCoef_(readScalar(XiEqModelCoeffs_.lookup("lCoef"))),
SuMin_(0.01*Su.average()),
uPrimeCoef_(readScalar(XiEqModelCoeffs_.lookup("uPrimeCoef"))),
subGridSchelkin_
(
readBool(XiEqModelCoeffs_.lookup("subGridSchelkin"))
),
MaModel
(
IOdictionary
@ -84,9 +89,9 @@ Foam::tmp<Foam::volScalarField> Foam::XiEqModels::SCOPEXiEq::XiEq() const
const volScalarField& epsilon = turbulence_.epsilon();
volScalarField up(sqrt((2.0/3.0)*k));
if (subGridSchelkin())
if (subGridSchelkin_)
{
up.internalField() += calculateSchelkinEffect();
up.internalField() += calculateSchelkinEffect(uPrimeCoef_);
}
volScalarField l(lCoef_*sqrt(3.0/2.0)*up*k/epsilon);

6
applications/solvers/combustion/PDRFoam/XiModels/XiEqModels/SCOPEXiEq/SCOPEXiEq.H
View File

@ -70,6 +70,12 @@ class SCOPEXiEq
//- Minimum Su
dimensionedScalar SuMin_;
//- Schelkin effect Model constant
scalar uPrimeCoef_;
//- Use sub-grid Schelkin effect
bool subGridSchelkin_;
//- The SCOPE laminar flame speed model used to obtain the
// Marstein number. Note: the laminar flame speed need not be
// obtained form the same model.

4
applications/solvers/combustion/PDRFoam/XiModels/XiEqModels/XiEqModel/XiEqModel.C
View File

@ -119,7 +119,7 @@ void Foam::XiEqModel::writeFields() const
}
Foam::tmp<Foam::volScalarField>
Foam::XiEqModel::calculateSchelkinEffect() const
Foam::XiEqModel::calculateSchelkinEffect(const scalar uPrimeCoef) const
{
const fvMesh& mesh = Su_.mesh();
@ -188,7 +188,7 @@ Foam::XiEqModel::calculateSchelkinEffect() const
const scalarField cellWidth(pow(mesh.V(), 1.0/3.0));
const scalarField upLocal(uPrimeCoef_*sqrt((U & CT & U)*cellWidth));
const scalarField upLocal(uPrimeCoef*sqrt((U & CT & U)*cellWidth));
const scalarField deltaUp(upLocal*(max(scalar(1.0), pow(nr, 0.5)) - 1.0));

13
applications/solvers/combustion/PDRFoam/XiModels/XiEqModels/XiEqModel/XiEqModel.H
View File

@ -80,12 +80,6 @@ protected:
//
volSymmTensorField nsv_;
//- Schelkin effect Model constant
scalar uPrimeCoef_;
//- Use sub-grid Schelkin effect
bool subGridSchelkin_;
private:
@ -162,14 +156,9 @@ public:
return turbulence_.muEff();
}
//- Return state of the sub-grid Schelkin effect
bool subGridSchelkin() const
{
return subGridSchelkin_;
}
//- Return the sub-grid Schelkin effect
tmp<volScalarField> calculateSchelkinEffect() const;
tmp<volScalarField> calculateSchelkinEffect(const scalar) const;
//- Update properties from given dictionary
virtual bool read(const dictionary& XiEqProperties) = 0;

8
tutorials/combustion/PDRFoam/flamePropagationWithObstacles/constant/PDRProperties
View File

@ -50,26 +50,26 @@ instabilityCoeffs
XiEqModelL
{
XiEqModel Gulder;
uPrimeCoef 1.0;
subGridSchelkin true;
GulderCoeffs
{
XiEqCoef 0.62;
uPrimeCoef 1.0;
subGridSchelkin true;
}
}
XiEqModelH
{
XiEqModel SCOPEXiEq;
uPrimeCoef 1.0;
subGridSchelkin true;
SCOPEXiEqCoeffs
{
XiEqCoef 1.6;
XiEqExp 0.33333;
lCoef 0.336;
uPrimeCoef 1.0;
subGridSchelkin true;
}
}
}

2
tutorials/combustion/PDRFoam/flamePropagationWithObstacles/system/fvSchemes
View File

@ -60,7 +60,7 @@ laplacianSchemes
laplacian(muEff,U) Gauss linear limited 0.333;
laplacian(DkEff,k) Gauss linear limited 0.333;
laplacian(DepsilonEff,epsilon) Gauss linear limited 0.333;
laplacian((rho*inv((((1)*A(U))+((((0.5*rho)*CR)*mag(U))+((((Csu*(1))*betav)*muEff)*sqr(Aw)))))),p) Gauss linear limited 0.333;
laplacian((rho*inv((((1)*A(U))+tDragDcu))),p) Gauss linear limited 0.333;
laplacian(Db,b) Gauss linear limited 0.333;
laplacian(Db,ft) Gauss linear limited 0.333;
laplacian(Db,h) Gauss linear limited 0.333;