voidFractionModel centre command

Syntax

Defined in couplingProperties dictionary.

voidFractionModel centre;
centreProps
{
    alphaMin number1;
    weight   number2;
}

  • number1 = minimum limit for void fraction

  • number2 = (optional) scaling of the particle volume to account for porosity or agglomerations.

Examples

voidFractionModel centre;
centreProps
{
    alphaMin 0.1;
    weight   1.0;
}

Description

The centre void fraction model calculates the void fraction 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 “weight”, using Vparticle=dsphere^3*pi/6*weight.

Restrictions

none