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54 lines
1.5 KiB
HTML
54 lines
1.5 KiB
HTML
<HTML>
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<CENTER><A HREF = "http://www.cfdem.com">CFDEMproject WWW Site</A> - <A HREF = "CFDEMcoupling_Manual.html#comm">CFDEM Commands</A>
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<HR>
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<H3>smoothingModel_constDiffSmoothing command
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</H3>
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<P><B>Syntax:</B>
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</P>
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<P>Defined in couplingProperties dictionary.
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</P>
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<PRE>smoothingModel constDiffSmoothing;
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constDiffSmoothingProps
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{
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lowerLimit number1;
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upperLimit number2;
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smoothingLength lengthScale;
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}
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</PRE>
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<UL><LI><I>number1</I> = scalar fields will be bound to this lower value
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<LI><I>number2</I> = scalar fields will be bound to this upper value
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<LI><I>lengthScale</I> = length scale over which the exchange fields will be smoothed out
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</UL>
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<P><B>Examples:</B>
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</P>
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<PRE>constDiffSmoothingProps
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{
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lowerLimit 0.1;
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upperLimit 1e10;
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smoothingLength 1500e-6;
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}
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</PRE>
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<P><B>Description:</B>
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</P>
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<P>The "constDiffSmoothing" model is a basic smoothingModel model which reads a smoothing length scale being used for smoothening the exchange fields (voidfraction, Ksl, f if present). This model can be used for smoothing explicit force coupling fields, as well as implicit fource coupling algorithms
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(see solver "cfdemSolverPisoImEx").
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</P>
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<P><B>Restrictions:</B> Should be used for monodisperse cases only.
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Time derivatives of the voidfraction field are calculated incorrectly, so don't use them in your solver when smoothing is applied.
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</P>
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<P><B>Related commands:</B>
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</P>
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<P><A HREF = "smoothingModel.html">smoothingModel</A>
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</P>
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</HTML>
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