"CFDEMproject Website"_lws - "Main Page"_main :c

:link(lws,http://www.cfdem.com)
:link(main,CFDEMcoupling_Manual.html)

:line

forceModel gradPForce command :h3

[Syntax:]

Defined in "couplingProperties"_CFDEMcoupling_dicts.html#couplingProperties
dictionary.

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

{pressure} = name of the finite volume fluid pressure field :ulb,l
{U} = name of the finite volume fluid velocity field :l
{scalar1} = (optional, default 0) coefficient of added mass accounted for :l
{switch1} = (optional, default false) sub model switch, see "forceSubModel"_forceSubModel.html for details :l
{switch2} = (optional, default false) sub model switch, see "forceSubModel"_forceSubModel.html for details :l
{switch3} = (optional, default false) flag to use interpolated pressure values :l
:ule

[Examples:]

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

[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"_forceModel.html