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-   -   viscous resistance and inertial resistance for microfilter (http://www.cfd-online.com/Forums/fluent/89772-viscous-resistance-inertial-resistance-microfilter.html)

zhhjll June 22, 2011 04:31

viscous resistance and inertial resistance for microfilter
 
hi all
I want to model a micro filter, This filter (membrane) is rectangular (105 cm) with the thickness 12e-5. so,I calculate viscous and inertial resistance parameters from Ergun equation which D=1e-6, because of the Micro filter type. is this assumption true??
i think this is very thin filter so there in not flow through in the membrane, in this situation is inertial coefficieant higher in Y direction? or not?when i set y-direction inertial coefficient higher than x-direction got better answer! is this resonable?

avac July 14, 2011 08:55

Since your filter is so thin it probably makes sense to use the 1D porous jump. The fluent user's guide/help has info about it.


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