forceModel_gradPForce command

Syntax:

Defined in couplingProperties dictionary.

forceModels
(
    gradPForce;
);
gradPForceProps
{
    pFieldName "pressure";
    densityFieldName "density";
    velocityFieldName "U";
    interpolation;
}; 

• pressure = name of the finite volume fluid pressure field
• density = name of the finite volume gravity field
• U = name of the finite volume fluid velocity field
• interpolation = flag to use interolate interpolated pressure values (normally off)

Examples:

forceModels
(
    gradPForce;
);
gradPForceProps
{
    pFieldName "p";
    densityFieldName "rho";
    velocityFieldName "U";
    interpolation;
} 

Description:

The force model performs the calculation of forces (e.g. fluid-particle interaction forces) acting on each DEM particle. The gradPForce model is a model that calculates the particle based pressure gradient force -(grad(p)) * Vparticle (see Zhou et al. (2010): "Discrete particle simulation of particle-fluid flow: model formulations and their applicability" ,JFM).

Restrictions:

none.

Related commands:

forceModel