voidfractionModel_centreVoidFraction command

Syntax

Defined in couplingProperties dictionary.

voidfractionModel centre;
centreProps
{
    alphaMin number1;
    volScale number2;
}

number1 = (optional, default 0.1) minimum limit for voidfraction
number2 = (optional, default 1) scaling (per type) of the particle volume to account for porosity or agglomerations.

Examples

voidfractionModel centre;
centreProps
{
    alphaMin 0.1;
    volScale ( 1. );
}

Description

The centre voidFraction model calculates the voidfraction in a CFD cell accounting for the volume of the particles whose centres are inside the cell.

The particle volume occupied in the CFD domain can be adjusted by the parameter “volScale”, using Vparticle=dsphere^3*pi/6*volScale.

Restrictions

none.