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Public Member Functions
basicSubGrid Class Reference

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

Detailed Description

Basic sub-grid obstacle flame-wrinking 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 82 of file basicXiSubXiEq.H.

+ Inheritance diagram for basicSubGrid:
+ Collaboration diagram for basicSubGrid:

List of all members.

Public Member Functions

 TypeName ("basicSubGrid")
 Runtime type information.
 basicSubGrid (const dictionary &XiEqProperties, const hhuCombustionThermo &thermo, const compressible::RASModel &turbulence, const volScalarField &Su)
 Construct from components.
virtual ~basicSubGrid ()
virtual tmp< volScalarField > XiEq () const
 Return the flame-wrinking XiEq.
virtual bool read (const dictionary &XiEqProperties)
 Update properties from given dictionary.
- Public Member Functions inherited from XiEqModel
 TypeName ("XiEqModel")
 Runtime type information.
 declareRunTimeSelectionTable (autoPtr, XiEqModel, dictionary,(const dictionary &XiEqProperties, const hhuCombustionThermo &thermo, const compressible::RASModel &turbulence, const volScalarField &Su),(XiEqProperties, thermo, turbulence, Su))
 XiEqModel (const dictionary &XiEqProperties, const hhuCombustionThermo &thermo, const compressible::RASModel &turbulence, const volScalarField &Su)
 Construct from components.
virtual ~XiEqModel ()

Additional Inherited Members

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

Constructor & Destructor Documentation

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

Construct from components.

virtual ~basicSubGrid ( )
virtual

Member Function Documentation

TypeName ( "basicSubGrid"  )

Runtime type information.

virtual tmp<volScalarField> XiEq ( ) const
virtual

Return the flame-wrinking XiEq.

Reimplemented from XiEqModel.

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: