Turbulence treatment in porous media

sebastiank · December 17, 2008, 04:34

Hello everyone,
My question is, how is the turbulence treated in the porous media in openFoam. In Fluent, there is a "laminar zone" option, which sets the turbulent viscosity to zero. Is there something similar in openFoam ?

Regards,

Sebastian Krick

Chrisi1984 · May 14, 2010, 08:21

Hi,

Have you solved your problem?

I am also simulating flow through porous meadia. In my calculation I got high values of k, but the turbulence inside the porous media should be zero, like in Fluent.

So what can I do.

I used the rhoPorousSimpleFoam solver.

Any ideas?

Greets Chris

Honey · May 8, 2017, 05:29

Hello,

This question has been asked long time ago and remained unanswered. Hopefully, someone can reply now!

How is turbulence treated in porous region? For instance, is there any source term added to "TKE" and "DR" equations in k-epsilon turbulence model in order to account for turbulence generated by solid obstacles? It is clearly seen that a sink term (based Darcy-Forchheimer) is added to the right hand side of momentum equation.

Looking forward to hear from you people soon!
Best regards

December 17, 2008, 04:34	Hello everyone, My question i	#1
sebastiank New Member Sebastian Krick Join Date: Mar 2009 Posts: 9 Rep Power: 17	Hello everyone, My question is, how is the turbulence treated in the porous media in openFoam. In Fluent, there is a "laminar zone" option, which sets the turbulent viscosity to zero. Is there something similar in openFoam ? Regards, Sebastian Krick

May 14, 2010, 08:21	porous zone	#2
Chrisi1984 Senior Member Join Date: Jan 2010 Location: Stuttgart Posts: 150 Rep Power: 16	Hi, Have you solved your problem? I am also simulating flow through porous meadia. In my calculation I got high values of k, but the turbulence inside the porous media should be zero, like in Fluent. So what can I do. I used the rhoPorousSimpleFoam solver. Any ideas? Greets Chris

May 8, 2017, 05:29	Turbulence in Porous Zone	#3
Honey New Member Honey Join Date: Mar 2011 Location: Dmg Posts: 23 Rep Power: 15	Hello, This question has been asked long time ago and remained unanswered. Hopefully, someone can reply now! How is turbulence treated in porous region? For instance, is there any source term added to "TKE" and "DR" equations in k-epsilon turbulence model in order to account for turbulence generated by solid obstacles? It is clearly seen that a sink term (based Darcy-Forchheimer) is added to the right hand side of momentum equation. Looking forward to hear from you people soon! Best regards

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