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

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

:line

forceModel viscForce command :h3

[Syntax:]

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

forceModels
(
    viscForce;
);
viscForceProps
\{
    velocityFieldName  "U";
    useAddedMass       scalar1;
    treatForceExplicit switch1;
    treatForceDEM      switch2;
    interpolation      switch3;
    scalarViscosity    switch4;
\} :pre

{U} = name of the finite volume fluid velocity field :ulb,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 stress values :l
{switch4} =  (optional, default false) sub model switch, see "forceSubModel"_forceSubModel.html for details :l
:ule

[Examples:]

forceModels
(
    viscForce;
);
viscForceProps
\{
    velocityFieldName "U";
\} :pre

[Description:]

The force model performs the calculation of forces (e.g. fluid-particle
interaction forces) acting on each DEM particle. The {viscForce} model
calculates the particle based viscous force, -(grad(tau)) * 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