Public Member Functions | List of all members
basicSubGrid Class Reference

Basic sub-grid obstacle flame-wrinkling enhancement factor model. Details supplied by J Puttock 2/7/06. More...

Inheritance diagram for basicSubGrid:
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Collaboration diagram for basicSubGrid:
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Public Member Functions

 TypeName ("basicSubGrid")
 Runtime type information. More...
 
 basicSubGrid (const dictionary &XiEqProperties, const psiuReactionThermo &thermo, const compressible::RASModel &turbulence, const volScalarField &Su)
 Construct from components. More...
 
virtual ~basicSubGrid ()
 Destructor. More...
 
virtual tmp< volScalarField > XiEq () const
 Return the flame-wrinkling XiEq. More...
 
virtual bool read (const dictionary &XiEqProperties)
 Update properties from given dictionary. More...
 
- Public Member Functions inherited from XiEqModel
 TypeName ("XiEqModel")
 Runtime type information. More...
 
 declareRunTimeSelectionTable (autoPtr, XiEqModel, dictionary,(const dictionary &XiEqProperties, const psiuReactionThermo &thermo, const compressible::RASModel &turbulence, const volScalarField &Su),(XiEqProperties, thermo, turbulence, Su))
 
 XiEqModel (const dictionary &XiEqProperties, const psiuReactionThermo &thermo, const compressible::RASModel &turbulence, const volScalarField &Su)
 Construct from components. More...
 
virtual ~XiEqModel ()
 Destructor. More...
 
tmp< volScalarField > calculateSchelkinEffect (const scalar) const
 Return the sub-grid Schelkin effect. More...
 
void writeFields () const
 Write fields. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from XiEqModel
static autoPtr< XiEqModel > New (const dictionary &XiEqProperties, const psiuReactionThermo &thermo, const compressible::RASModel &turbulence, const volScalarField &Su)
 Return a reference to the selected XiEq model. More...
 
- Protected Attributes inherited from XiEqModel
dictionary XiEqModelCoeffs_
 Dictionary. More...
 
const psiuReactionThermo & thermo_
 Thermo. More...
 
const compressible::RASModel & turbulence_
 Turbulence. More...
 
const volScalarField & Su_
 Laminar burning velocity. More...
 

Detailed Description

Basic sub-grid obstacle flame-wrinkling enhancement factor model. Details supplied by J Puttock 2/7/06.

Sub-grid flame area generation

\( n = N - \hat{\dwea{\vec{U}}}.n_{s}.\hat{\dwea{\vec{U}}} \) \( n_{r} = \sqrt{n} \)

where:

\( \hat{\dwea{\vec{U}}} = \dwea{\vec{U}} / \vert \dwea{\vec{U}} \vert \)

\( b = \hat{\dwea{\vec{U}}}.B.\hat{\dwea{\vec{U}}} / n_{r} \)

where:

\( B \) is the file "B".

\( N \) is the file "N".

\( n_{s} \) is the file "ns".

The flame area enhancement factor \( \Xi_{sub} \) is expected to approach:

\[ \Xi_{{sub}_{eq}} = 1 + max(2.2 \sqrt{b}, min(0.34 \frac{\vert \dwea{\vec{U}} \vert}{{\vec{U}}^{'}}, 1.6)) \times min(\frac{n}{4}, 1) \]

Source files

Definition at line 83 of file basicXiSubXiEq.H.

Constructor & Destructor Documentation

◆ basicSubGrid()

basicSubGrid ( const dictionary &  XiEqProperties,
const psiuReactionThermo &  thermo,
const compressible::RASModel &  turbulence,
const volScalarField &  Su 
)

Construct from components.

◆ ~basicSubGrid()

virtual ~basicSubGrid ( )
virtual

Destructor.

Member Function Documentation

◆ TypeName()

TypeName ( "basicSubGrid"  )

Runtime type information.

◆ XiEq()

virtual tmp<volScalarField> XiEq ( ) const
virtual

Return the flame-wrinkling XiEq.

Reimplemented from XiEqModel.

◆ read()

virtual bool read ( const dictionary &  XiEqProperties)
virtual

Update properties from given dictionary.

Implements XiEqModel.

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