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-   -   Modeling particle filtration (http://www.cfd-online.com/Forums/fluent/105011-modeling-particle-filtration.html)

Fernseher July 20, 2012 10:25

Modeling particle filtration
 
Hi,
I'm trying to simulate water flow through a filter element. The water contains small particles (10Ám diameter) which should be filtered out. The filter is set as a thin porous media zone. The volume fraction particles/water is about 2e-5 at the inlet.

My goal is to visualize the accretion and distribution of particles on the filter. I'm not sure which model would work best. Should I use the eulerian-granular multiphase model, and set different viscious and inertial resistance values for the different phases? I tried this, but didn't get good results yet. Even when I'm using the same resistance values for both phases, the soultion doesn't converge.

I also tried the discrete phase model, but I think the volume fraction close to the filter gets much higher than at the inlet, so the multiphase model should be the right one.. ?

Fernseher September 10, 2012 06:47

Or could I use an UDF to simulate the filter barrier?


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