Porous + Natural Convection
Has anybody worked on Natural Convection in infinite porous media by FLUENT?
Thanks in advance. 
Re: Porous + Natural Convection
We've done natural convection in finite porous media. How would you proposed to model an infinite medium (maybe with symmetry or periodicity)?

Re: Porous + Natural Convection
Dear Evan, thanks for your reply.
I have a vertical plate with a hotter temperature than the ambient. I have modeled this by pressure boundary conditions (Inlet and outlet). But the results are not satisfactory. I also have reversed flow in my boundaries. Please help me. 
Re: Porous + Natural Convection
First, don't use Boussinesq. Either use ideal gas or define a temperature dependent density.
Second, if you are modeling a vertical flat plate in an infinite medium of fluid, move your pressure boundaries further away from the plate. Third, are you including turbulence? If the plate is hot enough and/or long enough there may be turbulent flow. If you are using wall functions, switch to the enhanced wall treatment. 
Re: Porous + Natural Convection
Hello!
I have to solve a model with porous zone. It's my first model with porous zone. I can't determine boundary conditions for this solve. My model has three volums: Volume 1  gas volume (fluid) Volume 2  porous volume (porous) Volume 3  gas volume (fluid) I don't know as I can realize boundary conditions on boundary surfaces between gas volume and porous volume. There are two concurring surfaces between gas and porous volumes. Whats boundary conditions I must realize on this surfaces? Sorry for my bad English. Thank you for the answer. Andrew. 
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