CFD for porous medium heat transfer
Dear all,
I am starting a project in which I will study the effect of porous medium geometrical features (cell structure, porosity, surface area of one porous cell, etc.) on heat transfer due to air flow through the medium. I have used CFD in my masters thesis but it was 6 years ago and since then I have had nothing to do with CFD so Iam not up-to-date with latest trends. I do not want to do a wrong start which will cause troubles down the road. At least I want to start with the right tools. I have used Solidworks for geometry creation, gambit for mesh, Fluent for CFD runs and tecplot for post processing. However, I am not sure whether or not they are still good options... Thus I would really like to get your advices regarding what tool to use. Please help me to find answers for the following questions. 1- What CAD tool I should use? For some certain geometries, I will literally draw the geometry (not just defining porosity in Fluent) e.g. I will draw kelvin cell structure or tiny steel balls to create a porous domain. I know how to use Solidworks and I like it: it is simple and fast but I am open to any other advices you may have. 2- What mesh toolI should use? I have only used Gambit in my life and I know it is very old. I want to use a newer and more robust one. Please advise and please consider my purpose: I will need to do lots of unstructured mesh for hundreds of boundary layers inside the porous medium. 3- What CFD tool I should use? I would like to use something as fast as possible :) because I will do hundreds of different runs. Most of the runs I will do will be steady state. I will be dealing with solving boundary layers, implementing conjugate models and I will also utilize the available porosity features of the tool. 4- What post-processing tool I should use? I will need to post-process boundary layers, visualize them, create 3D plots, lots of surface heat flux integrals, heat transfer coefficients through the wall.... Any other advice you may have would be appreciated. I will keep this thread updated and I will fill this with my own learnings through my study. Thank all of you a ton for all of your help ! By the way, I am an old aggie and appreciate advices from aggies ;) Regards |
Any advices ? Thx
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No one has any idea ? [emoji19]
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Icarasik, thank you a ton for your reply. I think I now have answers for my questions but it seems I will need some preliminary study to decide question #3 but like you said most of the commercial ones should be ok.
Thanks and Gig'em. |
Non-equilibrium thermal model for porous medium
Dear all,
I am modelling heat transfer in porous medium (from hot air to porous medium) in Fluent. I have defined non-equilibrium thermal model in 'porous zone' in cell zone conditions (type: fluid). Fluent have created co-incident (shadow) solid zone adjacent to the fluid zone. and for that solid zone i have defined fixed temperature (fixed value). Other settings for porous medium like resistance coeffecients have been defined as usual. But I am not sure is this all we need to do to define non-equillibrium thermal model?? in result analysis I have to check solid temperature at different points along the height of column. But i dont know how to get this display? currently i have created some points by point creation in my geometry but i think it displays fluid or solid-fluid mean temperature, not the solid temperature that i need. Please help me on these problems. Thank you very much. Regards |
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