forceModel gradPForce command¶

Syntax¶

Defined in couplingProperties dictionary.

forceModels
(
    gradPForce;
);
gradPForceProps
{
    pFieldName         "pressure";
    velocityFieldName  "U";
    useAddedMass       scalar1;
    treatForceExplicit switch1;
    treatForceDEM      switch2;
    interpolation      switch3;
}

• pressure = name of the finite volume fluid pressure field

• U = name of the finite volume fluid velocity field

• scalar1 = (optional, default 0) coefficient of added mass accounted for

• switch1 = (optional, default false) sub model switch, see forceSubModel for details

• switch2 = (optional, default false) sub model switch, see forceSubModel for details

• switch3 = (optional, default false) flag to use interpolated pressure values

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”, J. Fluid Mech.).

Restrictions¶

none

Related commands¶

forceModel