viscous resistance and inertial resistance for microfilter

zhhjll · June 22, 2011, 05:31

hi all
I want to model a micro filter, This filter (membrane) is rectangular (10×5 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, 09:55

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.

June 22, 2011, 05:31	viscous resistance and inertial resistance for microfilter	#1
zhhjll New Member zohreh Join Date: Feb 2011 Location: Tehran Posts: 20 Rep Power: 15	hi all I want to model a micro filter, This filter (membrane) is rectangular (10×5 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?

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July 14, 2011, 09:55		#2
avac New Member Adam Join Date: Jul 2011 Posts: 1 Rep Power: 0	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.