nutUTabulatedWallFunction

Description

The nutUTabulatedWallFunction is boundary condition that provides a wall constraint on the turbulent viscosity (i.e. nut) based on velocity (i.e. U), for low- and high-Reynolds number applications.

As input, the user specifies a look-up table of u+ as a function of near-wall Reynolds number.

The table should be located in the $FOAM_CASE/constant directory.

Usage

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

Boundary file

<patchName>
{
    type            wall;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type            nutUTabulatedWallFunction;
    uPlusTable      <word>;

    // Inherited entries
    ...
}

where:

Property	Description	Type	Required	Default
type	Type name: nutUTabulatedWallFunction	word	yes	-
uPlusTable	u+ as a function of Re table name	word	yes	-

The inherited entries are elaborated in:

• nutWallFunctionFvPatchScalarField.H
• uniformInterpolationTable.H

• The tables are not registered since the same table object may be used for more than one patch.

Further information

Tutorial:

• N/A

Source code:

• nutUTabulatedWallFunction

API:

• Foam::nutUTabulatedWallFunctionFvPatchScalarField

History: Introduced in version 2.4.0