When an fvModel source introduces fluid into a simulation it should also
create a corresponding source term for all properties transported into
the domain by that injection. The source is, effectively, an alternative
form of inlet boundary, on which all transported properties need an
inlet value specified.
These values are now specified in the property field files. The
following is an example of a 0/U file in which the velocity of fluid
introduced by a fvModel source called "injection1" is set to a fixed
value of (-1 0 0):
dimensions [0 1 -1 0 0 0 0];
internalField uniform (0 0 0);
boundaryField
{
#includeEtc "caseDicts/setConstraintTypes"
wall
{
type noSlip;
}
atmosphere
{
type pressureInletOutletVelocity;
value $internalField;
}
}
// *** NEW ***
sources
{
injection1
{
type uniformFixedValue;
uniformValue (-1 0 0);
}
}
And the following entry in the 0/k file specifies the turbulent kinetic
energy introduced as a fraction of the mean flow kinetic energy:
sources
{
injection1
{
type turbulentIntensityKineticEnergy;
intensity 0.05;
}
}
The specification is directly analogous to boundary conditions. The
conditions are run-time selectable and can be concisely implemented.
They can access each other and be inter-dependent (e.g., the above,
where turbulent kinetic energy depends on velocity). The syntax keeps
field data localised and makes the source model (e.g., massSource,
volumeSource, ...) specification independent from what other models and
fields are present in the simulation. The 'fieldValues' entry previously
required by source models is now no longer required.
If source values need specifying and no source condition has been
supplied in the relevant field file then an error will be generated.
This error is similar to that generated for missing boundary conditions.
This replaces the behaviour where sources such as these would introduce
a value of zero, either silently or with a warning. This is now
considered unacceptable. Zero might be a tolerable default for certain
fields (U, k), but is wholly inappropriate for others (T, epsilon, rho).
This change additionally makes it possible to inject fluid into a
multicomponent solver with a specified temperature. Previously, it was
not possible to do this as there was no means of evaluating the energy
of fluid with the injected composition.
274 lines
6.9 KiB
C++
274 lines
6.9 KiB
C++
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration | Website: https://openfoam.org
|
|
\\ / A nd | Copyright (C) 2023 OpenFOAM Foundation
|
|
\\/ M anipulation |
|
|
-------------------------------------------------------------------------------
|
|
License
|
|
This file is part of OpenFOAM.
|
|
|
|
OpenFOAM is free software: you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
|
|
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "zeroDimensionalFixedPressureModel.H"
|
|
#include "zeroDimensionalFixedPressureConstraint.H"
|
|
#include "fvConstraints.H"
|
|
#include "fvmSup.H"
|
|
#include "addToRunTimeSelectionTable.H"
|
|
|
|
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
|
|
|
|
namespace Foam
|
|
{
|
|
namespace fv
|
|
{
|
|
defineTypeNameAndDebug(zeroDimensionalFixedPressureModel, 0);
|
|
addToRunTimeSelectionTable
|
|
(
|
|
fvModel,
|
|
zeroDimensionalFixedPressureModel,
|
|
dictionary
|
|
);
|
|
}
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
|
|
|
|
const Foam::fv::zeroDimensionalFixedPressureConstraint&
|
|
Foam::fv::zeroDimensionalFixedPressureModel::constraint() const
|
|
{
|
|
const fvConstraints& constraints = fvConstraints::New(mesh());
|
|
|
|
forAll(constraints, i)
|
|
{
|
|
if (isA<zeroDimensionalFixedPressureConstraint>(constraints[i]))
|
|
{
|
|
return refCast<const zeroDimensionalFixedPressureConstraint>
|
|
(
|
|
constraints[i]
|
|
);
|
|
}
|
|
}
|
|
|
|
FatalErrorInFunction
|
|
<< "The " << typeName << " fvModel requires a corresponding "
|
|
<< zeroDimensionalFixedPressureConstraint::typeName << " fvConstraint"
|
|
<< exit(FatalError);
|
|
|
|
return NullObjectRef<zeroDimensionalFixedPressureConstraint>();
|
|
}
|
|
|
|
|
|
template<class Type>
|
|
void Foam::fv::zeroDimensionalFixedPressureModel::addSupType
|
|
(
|
|
const VolField<Type>& field,
|
|
fvMatrix<Type>& eqn
|
|
) const
|
|
{
|
|
FatalErrorInFunction
|
|
<< "Cannot add a fixed pressure source for field " << field.name()
|
|
<< " to equation for " << eqn.psi().name() << " because this field's "
|
|
<< "equation was not recognised as being in mass-conservative form"
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
|
|
void Foam::fv::zeroDimensionalFixedPressureModel::addSupType
|
|
(
|
|
const volScalarField& rho,
|
|
fvMatrix<scalar>& eqn
|
|
) const
|
|
{
|
|
if (IOobject::member(rho.name()) == constraint().rhoName())
|
|
{
|
|
if (IOobject::member(eqn.psi().name()) == constraint().pName())
|
|
{
|
|
eqn += constraint().pEqnSource(rho, eqn);
|
|
}
|
|
else
|
|
{
|
|
eqn += constraint().massSource(rho());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// This is actually an incompressible single-phase equation. Rho is
|
|
// actually a property field. Fall back (and error).
|
|
addSupType<scalar>(rho, eqn);
|
|
}
|
|
}
|
|
|
|
|
|
template<class Type>
|
|
void Foam::fv::zeroDimensionalFixedPressureModel::addSupType
|
|
(
|
|
const volScalarField& rho,
|
|
const VolField<Type>& field,
|
|
fvMatrix<Type>& eqn
|
|
) const
|
|
{
|
|
if (&field != &eqn.psi())
|
|
{
|
|
FatalErrorInFunction
|
|
<< "Cannot add a fixed pressure source of field " << field.name()
|
|
<< " into an equation for field " << eqn.psi().name()
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
eqn -= fvm::SuSp(-constraint().massSource(rho()), eqn.psi());
|
|
}
|
|
|
|
|
|
void Foam::fv::zeroDimensionalFixedPressureModel::addSupType
|
|
(
|
|
const volScalarField& alpha,
|
|
const volScalarField& rho,
|
|
fvMatrix<scalar>& eqn
|
|
) const
|
|
{
|
|
if (IOobject::member(rho.name()) == constraint().rhoName())
|
|
{
|
|
if (IOobject::member(eqn.psi().name()) == constraint().pName())
|
|
{
|
|
eqn += alpha()*constraint().pEqnSource(rho, eqn);
|
|
}
|
|
else
|
|
{
|
|
eqn += constraint().massSource(alpha(), rho());
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// This is actually a compressible single-phase equation. Alpha is
|
|
// actually rho, and rho is actually a property field. Fall back.
|
|
addSupType<scalar>(alpha, rho, eqn);
|
|
}
|
|
}
|
|
|
|
|
|
template<class Type>
|
|
void Foam::fv::zeroDimensionalFixedPressureModel::addSupType
|
|
(
|
|
const volScalarField& alpha,
|
|
const volScalarField& rho,
|
|
const VolField<Type>& field,
|
|
fvMatrix<Type>& eqn
|
|
) const
|
|
{
|
|
if (&field != &eqn.psi())
|
|
{
|
|
FatalErrorInFunction
|
|
<< "Cannot add a fixed pressure source of field " << field.name()
|
|
<< " into an equation for field " << eqn.psi().name()
|
|
<< exit(FatalError);
|
|
}
|
|
|
|
eqn -= fvm::SuSp(-constraint().massSource(alpha(), rho()), eqn.psi());
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
|
|
|
|
Foam::fv::zeroDimensionalFixedPressureModel::zeroDimensionalFixedPressureModel
|
|
(
|
|
const word& name,
|
|
const word& modelType,
|
|
const fvMesh& mesh,
|
|
const dictionary& dict
|
|
)
|
|
:
|
|
fvModel(name, modelType, mesh, dict)
|
|
{
|
|
if (mesh.nGeometricD() != 0)
|
|
{
|
|
FatalIOErrorInFunction(dict)
|
|
<< "Zero-dimensional fvModel applied to a "
|
|
<< mesh.nGeometricD() << "-dimensional mesh"
|
|
<< exit(FatalIOError);
|
|
}
|
|
}
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
|
|
|
|
Foam::fv::zeroDimensionalFixedPressureModel::
|
|
~zeroDimensionalFixedPressureModel()
|
|
{}
|
|
|
|
|
|
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
|
|
|
|
bool Foam::fv::zeroDimensionalFixedPressureModel::addsSupToField
|
|
(
|
|
const word& fieldName
|
|
) const
|
|
{
|
|
return true;
|
|
}
|
|
|
|
|
|
FOR_ALL_FIELD_TYPES
|
|
(
|
|
IMPLEMENT_FV_MODEL_ADD_FIELD_SUP,
|
|
fv::zeroDimensionalFixedPressureModel
|
|
)
|
|
|
|
|
|
FOR_ALL_FIELD_TYPES
|
|
(
|
|
IMPLEMENT_FV_MODEL_ADD_RHO_FIELD_SUP,
|
|
fv::zeroDimensionalFixedPressureModel
|
|
)
|
|
|
|
|
|
FOR_ALL_FIELD_TYPES
|
|
(
|
|
IMPLEMENT_FV_MODEL_ADD_ALPHA_RHO_FIELD_SUP,
|
|
fv::zeroDimensionalFixedPressureModel
|
|
)
|
|
|
|
|
|
bool Foam::fv::zeroDimensionalFixedPressureModel::movePoints()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
|
|
void Foam::fv::zeroDimensionalFixedPressureModel::topoChange
|
|
(
|
|
const polyTopoChangeMap& map
|
|
)
|
|
{}
|
|
|
|
|
|
void Foam::fv::zeroDimensionalFixedPressureModel::mapMesh
|
|
(
|
|
const polyMeshMap& map
|
|
)
|
|
{}
|
|
|
|
|
|
void Foam::fv::zeroDimensionalFixedPressureModel::distribute
|
|
(
|
|
const polyDistributionMap& map
|
|
)
|
|
{}
|
|
|
|
|
|
// ************************************************************************* //
|