LeastSquaresGrad< Type, Stencil > Class Template Reference

Gradient calculated using weighted least-squares on an arbitrary stencil. The stencil type is provided via a template argument and any cell-based stencil is supported: More...

Inheritance diagram for LeastSquaresGrad< Type, Stencil >:
Collaboration diagram for LeastSquaresGrad< Type, Stencil >:

Public Member Functions

 TypeName ("LeastSquares")
 Runtime type information. More...
 
 LeastSquaresGrad (const fvMesh &mesh, Istream &schemeData)
 Construct from Istream. More...
 
 LeastSquaresGrad (const LeastSquaresGrad &)=delete
 Disallow default bitwise copy construction. More...
 
virtual tmp< GeometricField< typename outerProduct< vector, Type >::type, fvPatchField, volMesh > > calcGrad (const GeometricField< Type, fvPatchField, volMesh > &vsf, const word &name) const
 Return the gradient of the given field to the gradScheme::grad. More...
 
void operator= (const LeastSquaresGrad &)=delete
 Disallow default bitwise assignment. More...
 
- Public Member Functions inherited from gradScheme< Type >
virtual const wordtype () const =0
 Runtime type information. More...
 
 declareRunTimeSelectionTable (tmp, gradScheme, Istream,(const fvMesh &mesh, Istream &schemeData),(mesh, schemeData))
 
 gradScheme (const fvMesh &mesh)
 Construct from mesh. More...
 
virtual ~gradScheme ()
 Destructor. More...
 
const fvMeshmesh () const
 Return mesh reference. More...
 
tmp< GeometricField< typename outerProduct< vector, Type >::type, fvPatchField, volMesh > > grad (const GeometricField< Type, fvPatchField, volMesh > &, const word &name) const
 Calculate and return the grad of the given field. More...
 
tmp< GeometricField< typename outerProduct< vector, Type >::type, fvPatchField, volMesh > > grad (const GeometricField< Type, fvPatchField, volMesh > &) const
 Calculate and return the grad of the given field. More...
 
tmp< GeometricField< typename outerProduct< vector, Type >::type, fvPatchField, volMesh > > grad (const tmp< GeometricField< Type, fvPatchField, volMesh >> &) const
 Calculate and return the grad of the given field. More...
 
- Public Member Functions inherited from refCount
int count () const
 Return the current reference count. More...
 
bool unique () const
 Return true if the reference count is zero. More...
 
void operator++ ()
 Increment the reference count. More...
 
void operator++ (int)
 Increment the reference count. More...
 
void operator-- ()
 Decrement the reference count. More...
 
void operator-- (int)
 Decrement the reference count. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from gradScheme< Type >
static tmp< gradScheme< Type > > New (const fvMesh &mesh, Istream &schemeData)
 Return a pointer to a new gradScheme created on freestore. More...
 
- Protected Member Functions inherited from refCount
 refCount ()
 Construct null initialising count to 0. More...
 

Detailed Description

template<class Type, class Stencil>
class Foam::fv::LeastSquaresGrad< Type, Stencil >

Gradient calculated using weighted least-squares on an arbitrary stencil. The stencil type is provided via a template argument and any cell-based stencil is supported:

Stencil Connections Scheme name
centredCFCCellToCellStencil cell-face-cell Not Instantiated
centredCPCCellToCellStencil cell-point-cell pointCellsLeastSquares
centredCECCellToCellStencil cell-edge-cell edgeCellsLeastSquares

The first of these is not instantiated by default as the standard leastSquaresGrad is equivalent and more efficient.

Usage
Example of the gradient specification:
gradSchemes
{
    default         pointCellsLeastSquares;
}
See also
Foam::fv::LeastSquaresVectors Foam::fv::leastSquaresGrad
Source files

Definition at line 97 of file LeastSquaresGrad.H.

Constructor & Destructor Documentation

◆ LeastSquaresGrad() [1/2]

LeastSquaresGrad ( const fvMesh mesh,
Istream schemeData 
)
inline

Construct from Istream.

Definition at line 116 of file LeastSquaresGrad.H.

References LeastSquaresGrad< Type, Stencil >::calcGrad(), Foam::name(), and LeastSquaresGrad< Type, Stencil >::operator=().

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◆ LeastSquaresGrad() [2/2]

LeastSquaresGrad ( const LeastSquaresGrad< Type, Stencil > &  )
delete

Disallow default bitwise copy construction.

Member Function Documentation

◆ TypeName()

TypeName ( "LeastSquares"  )

Runtime type information.

◆ calcGrad()

virtual tmp< GeometricField <typename outerProduct<vector, Type>::type, fvPatchField, volMesh> > calcGrad ( const GeometricField< Type, fvPatchField, volMesh > &  vsf,
const word name 
) const
virtual

Return the gradient of the given field to the gradScheme::grad.

for optional caching

Implements gradScheme< Type >.

Referenced by LeastSquaresGrad< Type, Stencil >::LeastSquaresGrad().

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◆ operator=()

void operator= ( const LeastSquaresGrad< Type, Stencil > &  )
delete

Disallow default bitwise assignment.

Referenced by LeastSquaresGrad< Type, Stencil >::LeastSquaresGrad().

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