voidfractionModel_trilinearVoidFraction command

Syntax

Defined in couplingProperties dictionary.

voidfractionModel trilinear;
trilinearProps
{
    alphaMin number1;
}

• number1 = minimum limit for voidfraction

Examples

voidfractionModel trilinear;
trilinearProps
{
    alphaMin 0.3;
}

Description

The trilinear voidFraction model is supposed to be used when a particle (or its representation) is in the size range of a CFD cell. The particle’s volume is distributed over 8 neighbouring cell centres usind trilinear interpolation. This allows for a very smooth transition of particle volume when a particle travels from one cell to another cell.

Restrictions

The model works only for a structured mesh with equal cubic cells and a clean x/y/z parallel distribution of the cells. WARNING: the alphaMin parameter is not yet considered in the model!!!

Related commands

voidfractionModel