Description🔗

The kqRWallFunction is boundary condition that provides a simple wrapper around the zero-gradient condition, which can be used for the turbulent kinetic energy (i.e. k), square-root of turbulent kinetic energy (i.e. q) and Reynolds stress symmetric-tensor fields (i.e. R) for the cases of high Reynolds number flow using wall functions. It is not a wall-function condition.

Usage🔗

The condition requires entries in both the boundary and field files.

Boundary file🔗

<patchName>
{
    type            wall;
    ...
}

Field file🔗

<patchName>
{
    // Mandatory entries
    type            kqRWallFunction;

    // Inherited entries
    ...
}

where:

The inherited entries are elaborated in:

• zeroGradientFvPatchField.H

Further information🔗

Tutorial:

• $FOAM_TUTORIALS/incompressible/simpleFoam/pitzDaily

Source code:

• $FOAM_SRC/TurbulenceModels/turbulenceModels/derivedFvPatchFields/wallFunctions/kqRWallFunctions/kqRWallFunction

API:

• Foam::kqRWallFunctionFvPatchField

History:

• Introduced in version 2.4.0