nutUSpaldingWallFunctionFvPatchScalarField Class Reference

This boundary condition provides a turbulent kinematic viscosity condition when using wall functions for rough walls, based on velocity, using Spalding's law to give a continuous nut profile to the wall (y+ = 0) More...

Inheritance diagram for nutUSpaldingWallFunctionFvPatchScalarField:
Collaboration diagram for nutUSpaldingWallFunctionFvPatchScalarField:

Public Member Functions

 TypeName ("nutUSpaldingWallFunction")
 Runtime type information. More...
 
 nutUSpaldingWallFunctionFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &, const dictionary &)
 Construct from patch, internal field and dictionary. More...
 
 nutUSpaldingWallFunctionFvPatchScalarField (const nutUSpaldingWallFunctionFvPatchScalarField &, const fvPatch &, const DimensionedField< scalar, volMesh > &, const fieldMapper &)
 Construct by mapping given. More...
 
 nutUSpaldingWallFunctionFvPatchScalarField (const nutUSpaldingWallFunctionFvPatchScalarField &)=delete
 Disallow copy without setting internal field reference. More...
 
 nutUSpaldingWallFunctionFvPatchScalarField (const nutUSpaldingWallFunctionFvPatchScalarField &, const DimensionedField< scalar, volMesh > &)
 Copy constructor setting internal field reference. More...
 
virtual tmp< fvPatchScalarFieldclone (const DimensionedField< scalar, volMesh > &iF) const
 Construct and return a clone setting internal field reference. More...
 
virtual tmp< scalarFieldyPlus () const
 Calculate and return the yPlus at the boundary. More...
 
virtual void write (Ostream &os) const
 Write. More...
 
- Public Member Functions inherited from nutWallFunctionFvPatchScalarField
 TypeName ("nutWallFunction")
 Runtime type information. More...
 
 nutWallFunctionFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &, const dictionary &)
 Construct from patch, internal field and dictionary. More...
 
 nutWallFunctionFvPatchScalarField (const nutWallFunctionFvPatchScalarField &, const fvPatch &, const DimensionedField< scalar, volMesh > &, const fieldMapper &)
 Construct by mapping given. More...
 
 nutWallFunctionFvPatchScalarField (const nutWallFunctionFvPatchScalarField &)=delete
 Disallow copy without setting internal field reference. More...
 
 nutWallFunctionFvPatchScalarField (const nutWallFunctionFvPatchScalarField &, const DimensionedField< scalar, volMesh > &)
 Copy constructor setting internal field reference. More...
 
scalar Cmu () const
 Return Cmu. More...
 
scalar kappa () const
 Return kappa. More...
 
scalar E () const
 Return E. More...
 
scalar yPlusLam () const
 Return the Y+ at the edge of the laminar sublayer. More...
 
virtual void map (const fvPatchScalarField &, const fieldMapper &)
 Map the given fvPatchField onto this fvPatchField. More...
 
virtual void updateCoeffs ()
 Update the coefficients associated with the patch field. More...
 

Protected Member Functions

virtual tmp< scalarFieldnut () const
 Calculate the turbulence viscosity. More...
 
virtual tmp< scalarFieldcalcUTau (const scalarField &magGradU) const
 Calculate the friction velocity. More...
 
- Protected Member Functions inherited from nutWallFunctionFvPatchScalarField
virtual void checkType ()
 Check the type of the patch. More...
 
virtual void writeLocalEntries (Ostream &) const
 Write local wall function variables. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from nutWallFunctionFvPatchScalarField
static const nutWallFunctionFvPatchScalarFieldnutw (const momentumTransportModel &turbModel, const label patchi)
 Return the nut patchField for the given wall patch. More...
 
static scalar yPlusLam (const scalar kappa, const scalar E)
 Calculate the Y+ at the edge of the laminar sublayer. More...
 
- Protected Attributes inherited from nutWallFunctionFvPatchScalarField
scalar Cmu_
 Cmu coefficient. More...
 
scalar kappa_
 Von Karman constant. More...
 
scalar E_
 E coefficient. More...
 
scalar yPlusLam_
 Y+ at the edge of the laminar sublayer. More...
 

Detailed Description

This boundary condition provides a turbulent kinematic viscosity condition when using wall functions for rough walls, based on velocity, using Spalding's law to give a continuous nut profile to the wall (y+ = 0)

\[ y^+ = u^+ + \frac{1}{E} \left[exp(\kappa u^+) - 1 - \kappa u^+\, - 0.5 (\kappa u^+)^2 - \frac{1}{6} (\kappa u^+)^3\right] \]

where

$ y^+ $ = non-dimensional position
$ u^+ $ = non-dimensional velocity
$ \kappa $ = Von Karman constant

Reference:

        Spalding, D. B., (1961).
        A Single Formula for the "Law of the Wall".
        Journal of Applied Mechanics, 28(3), 455-458
Usage
Example of the boundary condition specification:
<patchName>
{
    type            nutUSpaldingWallFunction;
    value           uniform 0;
}
See also
Foam::nutWallFunctionFvPatchScalarField
Source files

Definition at line 94 of file nutUSpaldingWallFunctionFvPatchScalarField.H.

Constructor & Destructor Documentation

◆ nutUSpaldingWallFunctionFvPatchScalarField() [1/4]

nutUSpaldingWallFunctionFvPatchScalarField ( const fvPatch p,
const DimensionedField< scalar, volMesh > &  iF,
const dictionary dict 
)

Construct from patch, internal field and dictionary.

Definition at line 122 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

Referenced by nutUSpaldingWallFunctionFvPatchScalarField::clone().

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◆ nutUSpaldingWallFunctionFvPatchScalarField() [2/4]

Construct by mapping given.

nutUSpaldingWallFunctionFvPatchScalarField onto a new patch

Definition at line 134 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

◆ nutUSpaldingWallFunctionFvPatchScalarField() [3/4]

Disallow copy without setting internal field reference.

◆ nutUSpaldingWallFunctionFvPatchScalarField() [4/4]

Copy constructor setting internal field reference.

Definition at line 147 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

Member Function Documentation

◆ nut()

◆ calcUTau()

◆ TypeName()

TypeName ( "nutUSpaldingWallFunction"  )

Runtime type information.

◆ clone()

virtual tmp<fvPatchScalarField> clone ( const DimensionedField< scalar, volMesh > &  iF) const
inlinevirtual

Construct and return a clone setting internal field reference.

Definition at line 150 of file nutUSpaldingWallFunctionFvPatchScalarField.H.

References nutUSpaldingWallFunctionFvPatchScalarField::nutUSpaldingWallFunctionFvPatchScalarField().

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◆ yPlus()

◆ write()

void write ( Ostream os) const
virtual

Write.

Reimplemented from nutWallFunctionFvPatchScalarField.

Definition at line 176 of file nutUSpaldingWallFunctionFvPatchScalarField.C.

References fvPatchField< Type >::write(), Foam::writeEntry(), and nutWallFunctionFvPatchScalarField::writeLocalEntries().

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