Public Member Functions | List of all members
turbulentMixingLengthDissipationRateFvScalarFieldSource Class Reference

This source condition provides a turbulence dissipation, $\epsilon$ (epsilon), based on a specified mixing length. The source values are calculated using: More...

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Public Member Functions

 TypeName ("turbulentMixingLengthDissipationRate")
 Runtime type information. More...
 
 turbulentMixingLengthDissipationRateFvScalarFieldSource (const DimensionedField< scalar, volMesh > &, const dictionary &dict)
 Construct from internal field and dictionary. More...
 
 turbulentMixingLengthDissipationRateFvScalarFieldSource (const turbulentMixingLengthDissipationRateFvScalarFieldSource &, const DimensionedField< scalar, volMesh > &)
 Copy constructor setting internal field reference. More...
 
virtual autoPtr< fvScalarFieldSource > clone (const DimensionedField< scalar, volMesh > &iF) const
 Construct and return a clone setting internal field reference. More...
 
virtual ~turbulentMixingLengthDissipationRateFvScalarFieldSource ()
 Destructor. More...
 
virtual tmp< DimensionedField< scalar, volMesh > > sourceValue (const fvSource &model, const DimensionedField< scalar, volMesh > &source) const
 Return the source value. More...
 
virtual tmp< scalarField > sourceValue (const fvSource &model, const scalarField &source, const labelUList &cells) const
 Return the source value. More...
 
virtual tmp< DimensionedField< scalar, volMesh > > internalCoeff (const fvSource &model, const DimensionedField< scalar, volMesh > &source) const
 Return the internal coefficient. More...
 
virtual tmp< scalarField > internalCoeff (const fvSource &model, const scalarField &source, const labelUList &cells) const
 Return the internal coefficient. More...
 
virtual void write (Ostream &) const
 Write. More...
 

Detailed Description

This source condition provides a turbulence dissipation, $\epsilon$ (epsilon), based on a specified mixing length. The source values are calculated using:

\[ \epsilon = \frac{C_{\mu}^{0.75} k^{1.5}}{L} \]

where

$ \epsilon $ = epsilon values
$ C_{\mu} $ = Model coefficient, set to 0.09
$ k $ = turbulence kinetic energy
$ L $ = length scale

In the case of a sink, the current cell values are used instead.

Usage
Property Description Required Default value
mixingLength Length scale [m] yes
k turbulence kinetic energy field name no k
Cmu Turbulence model coefficient no 0.09

Example of the source condition specification: 

    <sourceName>
    {
        type            turbulentMixingLengthDissipationRate;
        mixingLength    0.005;
    }
Source files

Definition at line 118 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.H.

Constructor & Destructor Documentation

◆ turbulentMixingLengthDissipationRateFvScalarFieldSource() [1/2]

turbulentMixingLengthDissipationRateFvScalarFieldSource ( const DimensionedField< scalar, volMesh > &  iF,
const dictionary &  dict 
)

Construct from internal field and dictionary.

Definition at line 34 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.C.

◆ turbulentMixingLengthDissipationRateFvScalarFieldSource() [2/2]

turbulentMixingLengthDissipationRateFvScalarFieldSource ( const turbulentMixingLengthDissipationRateFvScalarFieldSource &  field,
const DimensionedField< scalar, volMesh > &  iF 
)

Copy constructor setting internal field reference.

Definition at line 48 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.C.

◆ ~turbulentMixingLengthDissipationRateFvScalarFieldSource()

~turbulentMixingLengthDissipationRateFvScalarFieldSource ( )
virtual

Destructor.

Definition at line 64 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.C.

Member Function Documentation

◆ TypeName()

TypeName ( "turbulentMixingLengthDissipationRate"  )

Runtime type information.

◆ clone()

virtual autoPtr<fvScalarFieldSource> clone ( const DimensionedField< scalar, volMesh > &  iF) const
inlinevirtual

Construct and return a clone setting internal field reference.

Definition at line 159 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.H.

◆ sourceValue() [1/2]

Foam::tmp< Foam::DimensionedField< Foam::scalar, Foam::volMesh > > sourceValue ( const fvSource &  model,
const DimensionedField< scalar, volMesh > &  source 
) const
virtual

Return the source value.

Definition at line 72 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.C.

References Foam::pow(), and Foam::sqrt().

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◆ sourceValue() [2/2]

Foam::tmp< Foam::scalarField > sourceValue ( const fvSource &  model,
const scalarField &  source,
const labelUList &  cells 
) const
virtual

Return the source value.

Definition at line 88 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.C.

References cells, Foam::pow(), and Foam::sqrt().

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◆ internalCoeff() [1/2]

Foam::tmp< Foam::DimensionedField< Foam::scalar, Foam::volMesh > > internalCoeff ( const fvSource &  model,
const DimensionedField< scalar, volMesh > &  source 
) const
virtual

Return the internal coefficient.

Definition at line 102 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.C.

References Foam::neg0().

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◆ internalCoeff() [2/2]

Foam::tmp< Foam::scalarField > internalCoeff ( const fvSource &  model,
const scalarField &  source,
const labelUList &  cells 
) const
virtual

Return the internal coefficient.

Definition at line 113 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.C.

References Foam::neg0().

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◆ write()

void write ( Ostream &  os) const
virtual

Write.

Definition at line 124 of file turbulentMixingLengthDissipationRateFvScalarFieldSource.C.

References Foam::vtkWriteOps::write(), and Foam::writeEntry().

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