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.


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

Boundary file

    type            wall;

Field file

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

    // Inherited entries


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


  • N/A

Source code:



  • Introduced in version 2.4.0