chemistryModel diffusionCoefficients command

Syntax

Defined in couplingProperties dictionary.

chemistryModels
(
    diffusionCoefficients
);
diffusionCoefficientsProps
{
    verbose             switch1;
    ChemistryFile       "$casePath/CFD/constant/foam.inp";
    diffusantGasNames   ( speciesNames );
}

  • switch1 = (optional, default false) flag to output verbose information

  • ChemistryFile = path to file, where the reacting species are listed

  • diffusantGasNames = list of gas field names that are the reactant gases

Examples

chemistryModels
(
    diffusionCoefficients
);
diffusionCoefficientsProps
{
    verbose             false;
    ChemistryFile       "$casePath/CFD/constant/foam.inp";
    diffusantGasNames   (    CO
                             H2
                        );
}

Description

The chemistry model performs the calculation of chemical reactional effects acting on each DEM particle. The diffusionCoefficients model activates the binary molecular diffusion calculation of the reacting species using the Fuller-Schettler-Giddings correlation.

Restrictions

The species model needs to be active.