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:

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.

Constructor & Destructor Documentation

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

Construct from components.

virtual ~basicSubGrid ( ) [virtual]

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:

applications/solvers/combustion/PDRFoam/PDRModels/XiEqModels/basicXiSubXiEq/basicXiSubXiEq.H