forceModel MeiLift command

Syntax

Defined in couplingProperties dictionary.

forceModels
(
    MeiLift
);
MeiLiftProps
{
    velFieldName        "U";
    useShearInduced     switch1;
    useSpinInduced      switch2;
    combineShearSpin    switch3;
    treatForceExplicit  switch4;
    verbose             switch5;
    interpolation       switch6;
    scalarViscosity     switch7;
}

  • U = name of the finite volume fluid velocity field

  • useShearInduced = (optional, default true) switch to activate shear-induced (Saffman) lift

  • useSpinInduced = (optional, default false) switch to activate spin-induced (Magnus) lift

  • combineShearSpin = (optional, default false) switch to use the correlation for combined shear- and spin-induced lift by Loth and Dorgan (2009)

  • switch4 = (optional, default false) sub model switch, see forceSubModel for details

  • switch5 = (optional, default false) switch to activate the report of per-particle quantities to the screen

  • switch6 = (optional, default false) switch to activate tri-linear interpolation of the flow quantities at the particle position

  • switch7 = (optional, default false) sub model switch, see forceSubModel for details

Examples

forceModels
(
    MeiLift
);
MeiLiftProps
{
    velFieldName        "U";
    interpolation       true;
    verbose             true;
}

Description

The force model performs the calculation of forces (e.g. fluid-particle interaction forces) acting on each DEM particle. The MeiLift model calculates the lift force for each particle based on Loth and Dorgan (2009).

(LothDorgan2009) E. Loth, A.J. Dorgan. (2009): “An equation of motion for particles of finite Reynolds number and size”, Environmental Fluid Mechanics

Restrictions

none