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chemistryModel/laminar/PaSR: Add support for LTS to laminar model and to PaSR by derivation

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This commit is contained in:
Henry
2013-09-29 22:07:36 +01:00
parent 00db27b969
commit ee76550653
7 changed files with 93 additions and 117 deletions
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108
src/combustionModels/PaSR/PaSR.C
View File

@ -35,7 +35,7 @@ Foam::combustionModels::PaSR<Type>::PaSR
const fvMesh& mesh
)
:
Type(modelType, mesh),
laminar<Type>(modelType, mesh),
Cmix_(readScalar(this->coeffs().lookup("Cmix"))),
turbulentReaction_(this->coeffs().lookup("turbulentReaction")),
kappa_
@ -50,21 +50,8 @@ Foam::combustionModels::PaSR<Type>::PaSR
),
mesh,
dimensionedScalar("kappa", dimless, 0.0)
),
integrateReactionRate_
(
this->coeffs().lookupOrDefault("integrateReactionRate", true)
)
{
if (integrateReactionRate_)
{
Info<< " using integrated reaction rate" << endl;
}
else
{
Info<< " using instantaneous reaction rate" << endl;
}
}
{}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
@ -76,28 +63,12 @@ Foam::combustionModels::PaSR<Type>::~PaSR()
// * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * //
template<class Type>
Foam::tmp<Foam::volScalarField> Foam::combustionModels::PaSR<Type>::tc() const
{
return this->chemistryPtr_->tc();
}
template<class Type>
void Foam::combustionModels::PaSR<Type>::correct()
{
if (this->active())
{
const scalar dt = this->mesh().time().deltaTValue();
if (integrateReactionRate_)
{
this->chemistryPtr_->solve(dt);
}
else
{
this->chemistryPtr_->calculate();
}
laminar<Type>::correct();
if (turbulentReaction_)
{
@ -108,7 +79,7 @@ void Foam::combustionModels::PaSR<Type>::correct()
tmp<volScalarField> tmuEff(this->turbulence().muEff());
const volScalarField& muEff = tmuEff();
tmp<volScalarField> ttc(tc());
tmp<volScalarField> ttc(this->tc());
const volScalarField& tc = ttc();
forAll(epsilon, i)
@ -138,18 +109,7 @@ template<class Type>
Foam::tmp<Foam::fvScalarMatrix>
Foam::combustionModels::PaSR<Type>::R(volScalarField& Y) const
{
tmp<fvScalarMatrix> tSu(new fvScalarMatrix(Y, dimMass/dimTime));
fvScalarMatrix& Su = tSu();
if (this->active())
{
const label specieI = this->thermo().composition().species()[Y.name()];
Su += kappa_*this->chemistryPtr_->RR(specieI);
}
return tSu;
return kappa_*laminar<Type>::R(Y);
}
@ -157,32 +117,7 @@ template<class Type>
Foam::tmp<Foam::volScalarField>
Foam::combustionModels::PaSR<Type>::dQ() const
{
tmp<volScalarField> tdQ
(
new volScalarField
(
IOobject
(
typeName + ":dQ",
this->mesh().time().timeName(),
this->mesh(),
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
this->mesh(),
dimensionedScalar("dQ", dimEnergy/dimTime, 0.0),
zeroGradientFvPatchScalarField::typeName
)
);
if (this->active())
{
volScalarField& dQ = tdQ();
dQ = kappa_*this->chemistryPtr_->dQ();
}
return tdQ;
return kappa_*laminar<Type>::dQ();
}
@ -190,44 +125,17 @@ template<class Type>
Foam::tmp<Foam::volScalarField>
Foam::combustionModels::PaSR<Type>::Sh() const
{
tmp<volScalarField> tSh
(
new volScalarField
(
IOobject
(
typeName + ":Sh",
this->mesh().time().timeName(),
this->mesh(),
IOobject::NO_READ,
IOobject::NO_WRITE,
false
),
this->mesh(),
dimensionedScalar("zero", dimEnergy/dimTime/dimVolume, 0.0),
zeroGradientFvPatchScalarField::typeName
)
);
if (this->active())
{
scalarField& Sh = tSh();
Sh = kappa_*this->chemistryPtr_->Sh();
}
return tSh;
return kappa_*laminar<Type>::Sh();
}
template<class Type>
bool Foam::combustionModels::PaSR<Type>::read()
{
if (Type::read())
if (laminar<Type>::read())
{
this->coeffs().lookup("Cmix") >> Cmix_;
this->coeffs().lookup("turbulentReaction") >> turbulentReaction_;
this->coeffs().lookup("integrateReactionRate")
>> integrateReactionRate_;
return true;
}
else

11
src/combustionModels/PaSR/PaSR.H
View File

@ -38,6 +38,8 @@ SourceFiles
#ifndef PaSR_H
#define PaSR_H
#include "laminar.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
@ -52,7 +54,7 @@ namespace combustionModels
template<class Type>
class PaSR
:
public Type
public laminar<Type>
{
// Private data
@ -65,16 +67,9 @@ class PaSR
//- Mixing parameter
volScalarField kappa_;
//- Integrate reaction rate over the time-step
// using the selected ODE solver
bool integrateReactionRate_;
// Private Member Functions
//- Return the chemical time scale
tmp<volScalarField> tc() const;
//- Disallow copy construct
PaSR(const PaSR&);

33
src/combustionModels/laminar/laminar.C
View File

@ -25,6 +25,7 @@ License
#include "laminar.H"
#include "fvmSup.H"
#include "localEulerDdtScheme.H"
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
@ -76,7 +77,37 @@ void Foam::combustionModels::laminar<Type>::correct()
{
if (integrateReactionRate_)
{
this->chemistryPtr_->solve(this->mesh().time().deltaTValue());
word ddtScheme(this->mesh().ddtScheme("Yi"));
if (ddtScheme == fv::localEulerDdtScheme<scalar>::typeName)
{
const scalarField& rDeltaT =
this->mesh().objectRegistry::lookupObject<volScalarField>
(
"rDeltaT"
);
if (this->coeffs().found("maxIntegrationTime"))
{
scalar maxIntegrationTime
(
readScalar(this->coeffs().lookup("maxIntegrationTime"))
);
this->chemistryPtr_->solve
(
min(1.0/rDeltaT, maxIntegrationTime)()
);
}
else
{
this->chemistryPtr_->solve((1.0/rDeltaT)());
}
}
else
{
this->chemistryPtr_->solve(this->mesh().time().deltaTValue());
}
}
else
{

7
src/combustionModels/laminar/laminar.H
View File

@ -57,12 +57,17 @@ class laminar
// using the selected ODE solver
bool integrateReactionRate_;
protected:
// Private Member Functions
// Protected Member Functions
//- Return the chemical time scale
tmp<volScalarField> tc() const;
private:
// Private Member Functions
//- Disallow copy construct
laminar(const laminar&);

4
src/thermophysicalModels/chemistryModel/chemistryModel/basicChemistryModel/basicChemistryModel.H
View File

@ -156,6 +156,10 @@ public:
// and return the characteristic time
virtual scalar solve(const scalar deltaT) = 0;
//- Solve the reaction system for the given time step
// and return the characteristic time
virtual scalar solve(const scalarField& deltaT) = 0;
//- Return the chemical time scale
virtual tmp<volScalarField> tc() const = 0;

38
src/thermophysicalModels/chemistryModel/chemistryModel/chemistryModel/chemistryModel.C
View File

@ -25,6 +25,7 @@ License
#include "chemistryModel.H"
#include "reactingMixture.H"
#include "UniformField.H"
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
@ -742,9 +743,10 @@ void Foam::chemistryModel<CompType, ThermoType>::calculate()
template<class CompType, class ThermoType>
template<class DeltaTType>
Foam::scalar Foam::chemistryModel<CompType, ThermoType>::solve
(
const scalar deltaT
const DeltaTType& deltaT
)
{
CompType::correct();
@ -795,9 +797,9 @@ Foam::scalar Foam::chemistryModel<CompType, ThermoType>::solve
// initialise timing parameters
scalar t = 0;
scalar timeLeft = deltaT[celli];
scalar tauC = this->deltaTChem_[celli];
scalar dt = min(deltaT, tauC);
scalar timeLeft = deltaT;
scalar dt = min(timeLeft, tauC);
// calculate the chemical source terms
while (timeLeft > SMALL)
@ -823,17 +825,39 @@ Foam::scalar Foam::chemistryModel<CompType, ThermoType>::solve
dc = c - c0;
for (label i=0; i<nSpecie_; i++)
{
RR_[i][celli] = dc[i]*specieThermo_[i].W()/deltaT;
RR_[i][celli] = dc[i]*specieThermo_[i].W()/deltaT[celli];
}
}
// Don't allow the time-step to change more than a factor of 2
deltaTMin = min(deltaTMin, 2*deltaT);
return deltaTMin;
}
template<class CompType, class ThermoType>
Foam::scalar Foam::chemistryModel<CompType, ThermoType>::solve
(
const scalar deltaT
)
{
// Don't allow the time-step to change more than a factor of 2
return min
(
this->solve<UniformField<scalar> >(UniformField<scalar>(deltaT)),
2*deltaT
);
}
template<class CompType, class ThermoType>
Foam::scalar Foam::chemistryModel<CompType, ThermoType>::solve
(
const scalarField& deltaT
)
{
return this->solve<scalarField>(deltaT);
}
template<class CompType, class ThermoType>
Foam::scalar Foam::chemistryModel<CompType, ThermoType>::solve
(

9
src/thermophysicalModels/chemistryModel/chemistryModel/chemistryModel/chemistryModel.H
View File

@ -70,6 +70,11 @@ class chemistryModel
//- Disallow default bitwise assignment
void operator=(const chemistryModel&);
//- Solve the reaction system for the given time step
// of given type and return the characteristic time
template<class DeltaTType>
scalar solve(const DeltaTType& deltaT);
protected:
@ -221,6 +226,10 @@ public:
// and return the characteristic time
virtual scalar solve(const scalar deltaT);
//- Solve the reaction system for the given time step
// and return the characteristic time
virtual scalar solve(const scalarField& deltaT);
//- Return the chemical time scale
virtual tmp<volScalarField> tc() const;