OUForce Class Reference

Calculates and applies the random OU (Ornstein-Uhlenbeck) process force to the momentum equation for direct numerical simulation of boxes of isotropic turbulence. More...

Inheritance diagram for OUForce:
Collaboration diagram for OUForce:

Public Member Functions

 TypeName ("OUForce")
 Runtime type information. More...
 
 OUForce (const word &name, const word &modelType, const fvMesh &mesh, const dictionary &dict)
 Construct from explicit source name and mesh. More...
 
 OUForce (const OUForce &)=delete
 Disallow default bitwise copy construction. More...
 
virtual wordList addSupFields () const
 Return the list of fields for which the fvModel adds source term. More...
 
virtual void addSup (const volVectorField &field, fvMatrix< vector > &eqn) const
 Add explicit contribution to incompressible momentum equation. More...
 
virtual bool movePoints ()
 Update for mesh motion. More...
 
virtual void topoChange (const polyTopoChangeMap &)
 Update topology using the given map. More...
 
virtual void mapMesh (const polyMeshMap &)
 Update from another mesh using the given map. More...
 
virtual void distribute (const polyDistributionMap &)
 Redistribute or update using the given distribution map. More...
 
virtual bool read (const dictionary &dict)
 Read source dictionary. More...
 
virtual bool write (const bool write=true) const
 Write energy spectrum. More...
 
void operator= (const OUForce &)=delete
 Disallow default bitwise assignment. More...
 
- Public Member Functions inherited from fvModel
 TypeName ("fvModel")
 Runtime type information. More...
 
 declareRunTimeSelectionTable (autoPtr, fvModel, dictionary,(const word &name, const word &modelType, const fvMesh &mesh, const dictionary &dict),(name, modelType, mesh, dict))
 
 fvModel (const word &name, const word &modelType, const fvMesh &mesh, const dictionary &dict)
 Construct from components. More...
 
autoPtr< fvModelclone () const
 Return clone. More...
 
virtual ~fvModel ()
 Destructor. More...
 
const wordname () const
 Return const access to the source name. More...
 
const fvMeshmesh () const
 Return const access to the mesh database. More...
 
const dictionarycoeffs () const
 Return dictionary. More...
 
virtual bool addsSupToField (const word &fieldName) const
 Return true if the fvModel adds a source term to the given. More...
 
virtual scalar maxDeltaT () const
 Return the maximum time-step for stable operation. More...
 
virtual void addSup (fvMatrix< scalar > &eqn) const
 Add a source term to a field-less proxy equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > sourceProxy (const VolField< Type > &eqnField) const
 Add a source term to an equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > source (const VolField< Type > &field) const
 Return source for an equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > sourceProxy (const VolField< Type > &field, const VolField< Type > &eqnField) const
 Return source for an equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > source (const volScalarField &rho, const VolField< Type > &field) const
 Return source for a compressible equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > sourceProxy (const volScalarField &rho, const VolField< Type > &field, const VolField< Type > &eqnField) const
 Return source for a compressible equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > source (const volScalarField &alpha, const volScalarField &rho, const VolField< Type > &field) const
 Return source for a phase equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > sourceProxy (const volScalarField &alpha, const volScalarField &rho, const VolField< Type > &field, const VolField< Type > &eqnField) const
 Return source for a phase equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > source (const volScalarField &alpha, const geometricOneField &rho, const VolField< Type > &field) const
 Return source for a phase equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > source (const geometricOneField &alpha, const volScalarField &rho, const VolField< Type > &field) const
 Return source for a phase equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > source (const geometricOneField &alpha, const geometricOneField &rho, const VolField< Type > &field) const
 Return source for a phase equation. More...
 
template<class Type >
tmp< fvMatrix< Type > > d2dt2 (const VolField< Type > &field) const
 Return source for an equation with a second time derivative. More...
 
virtual void preUpdateMesh ()
 Prepare for mesh update. More...
 
virtual void correct ()
 Correct the fvModel. More...
 
template<class AlphaRhoFieldType , class ... AlphaRhoFieldTypes>
Foam::dimensionSet sourceDims (const dimensionSet &ds, const AlphaRhoFieldType &alphaRhoField, const AlphaRhoFieldTypes &... alphaRhoFields)
 
template<class AlphaRhoFieldType , class ... AlphaRhoFieldTypes>
const Foam::wordfieldName (const AlphaRhoFieldType &alphaRhoField, const AlphaRhoFieldTypes &... alphaRhoFields)
 
template<class AlphaRhoFieldType >
const Foam::wordfieldName (const AlphaRhoFieldType &alphaRhoField)
 
template<class Type , class ... AlphaRhoFieldTypes>
Foam::tmp< Foam::fvMatrix< Type > > sourceTerm (const VolField< Type > &eqnField, const dimensionSet &ds, const AlphaRhoFieldTypes &... alphaRhoFields) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > sourceProxy (const VolField< Type > &eqnField) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > source (const VolField< Type > &field) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > sourceProxy (const VolField< Type > &field, const VolField< Type > &eqnField) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > source (const volScalarField &rho, const VolField< Type > &field) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > sourceProxy (const volScalarField &rho, const VolField< Type > &field, const VolField< Type > &eqnField) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > source (const volScalarField &alpha, const volScalarField &rho, const VolField< Type > &field) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > sourceProxy (const volScalarField &alpha, const volScalarField &rho, const VolField< Type > &field, const VolField< Type > &eqnField) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > source (const geometricOneField &alpha, const geometricOneField &rho, const VolField< Type > &field) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > source (const volScalarField &alpha, const geometricOneField &rho, const VolField< Type > &field) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > source (const geometricOneField &alpha, const volScalarField &rho, const VolField< Type > &field) const
 
template<class Type >
Foam::tmp< Foam::fvMatrix< Type > > d2dt2 (const VolField< Type > &field) const
 

Additional Inherited Members

- Static Public Member Functions inherited from fvModel
template<class AlphaRhoFieldType , class ... AlphaRhoFieldTypes>
static dimensionSet sourceDims (const dimensionSet &ds, const AlphaRhoFieldType &alphaRhoField, const AlphaRhoFieldTypes &... alphaRhoFields)
 Return the dimensions of the matrix of a source term. More...
 
static const dimensionSetsourceDims (const dimensionSet &ds)
 Return the dimensions of the matrix of a source term (base. More...
 
template<class AlphaRhoFieldType , class ... AlphaRhoFieldTypes>
static const wordfieldName (const AlphaRhoFieldType &alphaRhoField, const AlphaRhoFieldTypes &... alphaRhoFields)
 Return the name of the field associated with a source term. More...
 
template<class AlphaRhoFieldType >
static const wordfieldName (const AlphaRhoFieldType &alphaRhoField)
 Return the name of the field associated with a source term (base. More...
 
static const wordfieldName ()
 Return the name of the field associated with a source term. Special. More...
 
static autoPtr< fvModelNew (const word &name, const fvMesh &mesh, const dictionary &dict)
 Return a reference to the selected fvModel. More...
 
- Protected Member Functions inherited from fvModel
template<class Type >
void addSupType (const VolField< Type > &field, fvMatrix< Type > &eqn) const
 Add a source term to an equation. More...
 
template<class Type >
void addSupType (const volScalarField &rho, const VolField< Type > &field, fvMatrix< Type > &eqn) const
 Add a source term to a compressible equation. More...
 
template<class Type >
void addSupType (const volScalarField &alpha, const volScalarField &rho, const VolField< Type > &field, fvMatrix< Type > &eqn) const
 Add a source term to a phase equation. More...
 
template<class Type , class ... AlphaRhoFieldTypes>
tmp< fvMatrix< Type > > sourceTerm (const VolField< Type > &eqnField, const dimensionSet &ds, const AlphaRhoFieldTypes &... alphaRhoFields) const
 Return a source for an equation. More...
 

Detailed Description

Calculates and applies the random OU (Ornstein-Uhlenbeck) process force to the momentum equation for direct numerical simulation of boxes of isotropic turbulence.

The energy spectrum is calculated and written at write-times which is particularly useful to test and compare LES SGS models.

Note This random OU process force uses a FFT to generate the force field which is not currently parallelised. Also the mesh the FFT is applied to must be isotropic and have a power of 2 cells in each direction.

Usage
Example usage:
OUForce
{
    type    OUForce;

    libs    ("librandomProcesses.so");

    sigma   0.090295;
    alpha   0.81532;
    kUpper  10;
    kLower  7;
}
Source files

Definition at line 78 of file OUForce.H.

Constructor & Destructor Documentation

◆ OUForce() [1/2]

OUForce ( const word name,
const word modelType,
const fvMesh mesh,
const dictionary dict 
)

Construct from explicit source name and mesh.

Definition at line 60 of file OUForce.C.

◆ OUForce() [2/2]

OUForce ( const OUForce )
delete

Disallow default bitwise copy construction.

Member Function Documentation

◆ TypeName()

TypeName ( "OUForce"  )

Runtime type information.

◆ addSupFields()

Foam::wordList addSupFields ( ) const
virtual

Return the list of fields for which the fvModel adds source term.

to the transport equation

Reimplemented from fvModel.

Definition at line 79 of file OUForce.C.

◆ addSup()

void addSup ( const volVectorField field,
fvMatrix< vector > &  eqn 
) const
virtual

Add explicit contribution to incompressible momentum equation.

Definition at line 85 of file OUForce.C.

References Foam::dimAcceleration, Foam::mag(), Foam::name(), Foam::ReImSum(), and fft::reverseTransform().

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◆ movePoints()

bool movePoints ( )
virtual

Update for mesh motion.

Implements fvModel.

Definition at line 113 of file OUForce.C.

◆ topoChange()

void topoChange ( const polyTopoChangeMap )
virtual

Update topology using the given map.

Implements fvModel.

Definition at line 119 of file OUForce.C.

◆ mapMesh()

void mapMesh ( const polyMeshMap map)
virtual

Update from another mesh using the given map.

Implements fvModel.

Definition at line 123 of file OUForce.C.

◆ distribute()

void distribute ( const polyDistributionMap )
virtual

Redistribute or update using the given distribution map.

Implements fvModel.

Definition at line 127 of file OUForce.C.

◆ read()

bool read ( const dictionary dict)
virtual

Read source dictionary.

Reimplemented from fvModel.

Definition at line 131 of file OUForce.C.

References dict, and fvModel::read().

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◆ write()

bool write ( const bool  write = true) const
virtual

Write energy spectrum.

Reimplemented from fvModel.

Definition at line 145 of file OUForce.C.

References U, and Foam::writeEk().

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◆ operator=()

void operator= ( const OUForce )
delete

Disallow default bitwise assignment.


The documentation for this class was generated from the following files: