RongDrag

Syntax

Defined in couplingProperties dictionary.

forceModels
(
    RongDrag
);
RongDragProps
{
    velFieldName         "U";
    voidfractionFieldName "voidfraction";
    voidfractionInterpolationType "type1"
    UInterpolationType   "type2"
    granVelFieldName     "Us";

    // (optional) forceSubModel switches
    interpolation        switch;
    implForceDEM         switch;
};

  • velFieldName = name of the finite volume fluid velocity field (default: “U”)

  • voidfractionFieldName = name of the finite volume voidfraction field (default: “voidfraction”)

  • voidfractionInterpolationType = interpolation type for voidfraction field (default “cellPoint”)

  • UInterpolationType = interpolation type for velocity field (default “cellPointFace”)

  • granVelFieldName = name of average particle velocity field (default: “Us”)

This forceModel reads the following forceSubModel switches and overwrites the defaults as indicated in parentheses:

  • scaleDrag

  • scaleDH

  • treatForceExplicit

  • implForceDEM (default: true)

  • verbose

  • interpolation

  • implForceDEMaccumulated

  • scalarViscosity

Examples

forceModels
(
    RongDrag
);
RongDragProps
{
    velFieldName "U";
    voidfractionFieldName "voidfraction";
    interpolation true;
    implForceDEM true;
    granVelFieldName "Us";
}

Description

The force model performs the calculation of forces (e.g. fluid-particle interaction forces) acting on each DEM particle.

Restrictions

None.