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Alfonso February 26, 2009 12:04

Porous Media
Hi every one..I need help to simulate Engine air filter using Porous media boundary condition can anybody help me with any value to test Air Engine Filter? I canīt find any value about Face Permeablity(m2), and Pressure jump coefficient (C2)(1/m)

Thank you all Regards Alfonso

sathees kannan February 27, 2009 05:29

Re: Porous Media
refer fluent general manual

Alfonso February 27, 2009 12:26

Re: Porous Media
Hi sathees kannan for answer me i have been reading fluent manual but I canīt find where can I compute Face Permeability (m2) and the pressure-jump C2 (1/m) could you please tell me where are they or can you tell me any other formula to compute this ? to simulate Air Engine Filter Thank you Kindly Regards Alfonso

sathees kannan February 27, 2009 13:47

Re: Porous Media
i have uploaded some pages from fluent manual in my web page. there are so many ways by which you can get value of alpha & C2. hope it helps

Alfonso March 2, 2009 03:32

Thank you so much sathees kannan,
Thank you sathees kannan I really apreciate your help I will try to compute this values again with this equations that you send me I would like to thank you again and if you allow me we will keep you in touch Kindly Regards Alfonso

sathees kannan March 2, 2009 06:20

Re: Porous Media
Its my pleasure. You can contact me at

Alfonso March 3, 2009 11:15

Hello Sathees Kannan Again
Hello Sathees Kannan First of all Iwould like to thank you for help me lately and again Sorry for bother you again I have been studing to simualate Engine Air filter and to compute C2 and Alpha as you advice me a couple days ago and now I canīt compute E=Void Fraction and Dp=mean particle diameter and also I donīt know what mean is

I need this values to put inside de equation and solve the problem would you please help me with this problem?

Thank you so much Kindly Regards Alfonso

sathees kannan March 4, 2009 05:58

Re: Porous Media
there are lot many ways to calculate those values. refer the manual pages i have quoted. since i have never used porous jump, I have no idea.

Alfonso March 5, 2009 03:20

Re: Porous Media
Well Sathees Kannan Thank you again and I will keep seeking information Thank you so much and we could be in touch Kind Regard Alfonso

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