Description

The compressible::alphatPhaseChangeJayatillekeWallFunction is a boundary condition that provides a thermal wall function for turbulent thermal diffusivity (usually alphat) based on the Jayatilleke model for the Eulerian multiphase solvers.

Usage

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

Boundary file

<patchName>
{
    type            patch;
    ...
}

Field file

<patchName>
{
    // Mandatory entries
    type            compressible::alphatPhaseChangeJayatillekeWallFunction;

    // Optional entries
    Prt             <scalar>;
    Cmu             <scalar>;
    kappa           <scalar>;
    E               <scalar>;

    // Inherited entries
    ...
}

where:

Property Description Type Required Default
type Type name: compressible::alphatPhaseChangeJayatillekeWallFunction word yes -
Prt Turbulent Prandtl number scalar no 0.85
Cmu Empirical model coefficient scalar no 0.09
kappa Von Karman constant scalar no 0.41
E Wall roughness parameter scalar no 9.8

The inherited entries are elaborated in:

  • alphatPhaseChangeWallFunctionFvPatchScalarField.H

Further information

Tutorial:

Source code:

API:

History:

  • Introduced in version v2012