forceModel_gradPForce command

Syntax:

Defined in couplingProperties dictionary.

forceModels
(
    gradPForce;
);
gradPForceProps
{
    pFieldName "pressure";
    velocityFieldName "U";
    interpolation switch1;
}; 

• pressure = name of the finite volume fluid pressure field
• U = name of the finite volume fluid velocity field
• switch1 = flag to use interpolated pressure values (normally off)

Examples:

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

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