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Fluent/filter/porous jump/pipe

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Old   June 3, 2014, 14:00
Smile Fluent/filter/porous jump/pipe
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Hi everyone
I'm trying to simulate a flow through a strainer (filter) in a pipe with a well-rounded expansion before, and an 90 degrees elbow after it, in 3D, using Fluent. To simplify, just considerate a pipe with a 'filter' inside : To do that I've modeled the filter as porous jump.
__________________________________________________ _______________
inlet !wall filter outflow
________________________________________________!w all_____________

My boundary conditions are : Velocity_inlet - Outflow - Wall - and Porous jump

From the experimental data I get the permeability and the pressure jump coefficient for the porous jump condition.
I run it with a k-omega turbulence model.

But the results are not correct, it seems that it doesn't use the porous jump, and something weird, the pressure is higher after the filter, but it should be the contrary..

Any help would be appreciated


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filters, fluent 14, porous jump bc, pressure drop

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