mirror of
https://github.com/ParticulateFlow/CFDEMcoupling-PFM.git
synced 2025-12-08 06:37:44 +00:00
62 lines
1.5 KiB
HTML
62 lines
1.5 KiB
HTML
<HTML>
|
|
<CENTER><A HREF = "http://www.cfdem.com">CFDEMproject WWW Site</A> - <A HREF = "CFDEMcoupling_Manual.html#comm">CFDEM Commands</A>
|
|
</CENTER>
|
|
|
|
|
|
|
|
|
|
<HR>
|
|
|
|
<H3>forceModel_KochHillDrag command
|
|
</H3>
|
|
<P><B>Syntax:</B>
|
|
</P>
|
|
<P>Defined in couplingProperties dictionary.
|
|
</P>
|
|
<PRE>forceModels
|
|
(
|
|
KochHillDrag
|
|
);
|
|
KochHillDragProps
|
|
{
|
|
velFieldName "U";
|
|
voidfractionFieldName "voidfraction";
|
|
interpolation "bool1";
|
|
implForceDEM "bool2";
|
|
};
|
|
</PRE>
|
|
<UL><LI><I>U</I> = name of the finite volume fluid velocity field
|
|
|
|
<LI><I>voidfraction</I> = name of the finite volume voidfraction field
|
|
|
|
<LI><I>bool1</I> = (optional, normally off) flag to use interpolated voidfraction and fluid velocity values
|
|
|
|
<I>bool2</I> = (optional, normally off) flag to use implicit formulation of drag on DEM side:l
|
|
|
|
</UL>
|
|
<P><B>Examples:</B>
|
|
</P>
|
|
<PRE>forceModels
|
|
(
|
|
KochHillDrag
|
|
);
|
|
KochHillDragProps
|
|
{
|
|
velFieldName "U";
|
|
voidfractionFieldName "voidfraction";
|
|
}
|
|
</PRE>
|
|
<P><B>Description:</B>
|
|
</P>
|
|
<P>The force model performs the calculation of forces (e.g. fluid-particle interaction forces) acting on each DEM particle. The KochHillDrag model is a model that calculates the particle based drag force following the correlation of Koch & Hill (2001) (see van Buijtenen et al. (2011): "Numerical and experimental study on multiple-spout fluidized beds", ChemEngScience).
|
|
</P>
|
|
<P><B>Restrictions:</B>
|
|
</P>
|
|
<P>none.
|
|
</P>
|
|
<P><B>Related commands:</B>
|
|
</P>
|
|
<P><A HREF = "forceModel.html">forceModel</A>
|
|
</P>
|
|
</HTML>
|