Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
sigmoidalHeaviside Class Reference

A smooth Heaviside function to project the signed distance field in level set topology optimization. More...

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Public Member Functions

 TypeName ("sigmoidalHeaviside")
 Runtime type information. More...
 
 sigmoidalHeaviside (const fvMesh &mesh, const dictionary &dict)
 Construct from mesh and dictionary. More...
 
virtual ~sigmoidalHeaviside ()=default
 
virtual void interpolate (const scalarField &arg, scalarField &res) const
 Interpolate argument to result. More...
 
virtual tmp< scalarField > derivative (const scalarField &arg) const
 Return of function with respect to the argument field. More...
 
- Public Member Functions inherited from topOInterpolationFunction
 TypeName ("topOInterpolationFunction")
 Runtime type information. More...
 
 declareRunTimeSelectionTable (autoPtr, topOInterpolationFunction, dictionary,(const fvMesh &mesh, const dictionary &dict),(mesh, dict))
 
 topOInterpolationFunction (const fvMesh &mesh, const dictionary &dict)
 Construct from components. More...
 
virtual ~topOInterpolationFunction ()=default
 Destructor. More...
 
virtual void setLengthScaleParam (const scalar lengthScale)
 Set the parameter determining length scale. More...
 

Protected Member Functions

scalar computeNearBandWidth () const
 Compute the near-band width of the fluid-solid interface as. More...
 

Protected Attributes

scalar dNB_
 The near-band distance. More...
 
- Protected Attributes inherited from topOInterpolationFunction
const fvMesh & mesh_
 
dictionary dict_
 

Additional Inherited Members

- Static Public Member Functions inherited from topOInterpolationFunction
static autoPtr< topOInterpolationFunction > New (const fvMesh &mesh, const dictionary &dict)
 Return an autoPtr to the selected interpolation type. More...
 

Detailed Description

A smooth Heaviside function to project the signed distance field in level set topology optimization.

Definition at line 44 of file sigmoidalHeaviside.H.

Constructor & Destructor Documentation

◆ sigmoidalHeaviside()

sigmoidalHeaviside ( const fvMesh &  mesh,
const dictionary &  dict 
)

Construct from mesh and dictionary.

Definition at line 76 of file sigmoidalHeaviside.C.

◆ ~sigmoidalHeaviside()

virtual ~sigmoidalHeaviside ( )
virtualdefault

Member Function Documentation

◆ computeNearBandWidth()

scalar computeNearBandWidth ( ) const
protected

Compute the near-band width of the fluid-solid interface as.

the mean edge length of mesh cells

Definition at line 45 of file sigmoidalHeaviside.C.

References polyMesh::bounds(), DebugInfo, topOInterpolationFunction::dict_, Foam::endl(), forAll, Foam::gAverage(), dictionary::getOrDefaultCompat(), topOInterpolationFunction::mesh_, polyMesh::nGeometricD(), Foam::pow(), polyMesh::solutionD(), boundBox::span(), and fvMesh::V().

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◆ TypeName()

TypeName ( "sigmoidalHeaviside"  )

Runtime type information.

◆ interpolate()

void interpolate ( const scalarField &  arg,
scalarField &  res 
) const
virtual

Interpolate argument to result.

Implements topOInterpolationFunction.

Definition at line 90 of file sigmoidalHeaviside.C.

References DebugInfo, Foam::endl(), Foam::max(), Foam::min(), Foam::constant::mathematical::pi(), Foam::sin(), and Foam::type().

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◆ derivative()

tmp< scalarField > derivative ( const scalarField &  arg) const
virtual

Return of function with respect to the argument field.

Implements topOInterpolationFunction.

Definition at line 106 of file sigmoidalHeaviside.C.

References Foam::cos(), DebugInfo, sigmoidalHeaviside::dNB_, Foam::endl(), Foam::max(), topOInterpolationFunction::mesh_, Foam::min(), tmp< T >::New(), Foam::constant::mathematical::pi(), tmp< T >::ref(), UList< T >::size(), fvMesh::time(), TimeState::timeOutputValue(), Foam::type(), and Foam::Zero.

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Member Data Documentation

◆ dNB_

scalar dNB_
protected

The near-band distance.

Definition at line 55 of file sigmoidalHeaviside.H.

Referenced by sigmoidalHeaviside::derivative().

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