Help Conjugate heat transfer small enclosure FLUENT

Héctor Lodoso · December 21, 2016, 05:15

Hi all,

I am dealing with a conjugate heat transfer problem for electronics cooling in a very small domain (compartment) in FLUENT, with quite a complex geometry, and I am a little bit stagnated.

I have been fighting with the mesh for a long time, and I think all problems related with skewness and quality are already solved. Also interfaces are correct. Still, I am having troubles for convergence.

I suspect the problem is, as it is such a small domain, that a very high gradients for temperature and turbulence variables can be found at the outlet. However, I would like to avoid to extrude it farther out of the compartment...

My outlet is, in a first approuch, a pressure-outlet.

¿Any idea on how could I treat this situation?

I would appreciate very much any guess.

Thanks!

drmarcoguevara · January 11, 2017, 16:29

hi, I can help you with your CFD simulation, please write to me, my email is: maguevaral@ssengineering.com.co

December 21, 2016, 05:15	Help Conjugate heat transfer small enclosure FLUENT	#1
Héctor Lodoso New Member Héctor Lodoso Join Date: Oct 2015 Location: Spain Posts: 15 Rep Power: 11	Hi all, I am dealing with a conjugate heat transfer problem for electronics cooling in a very small domain (compartment) in FLUENT, with quite a complex geometry, and I am a little bit stagnated. I have been fighting with the mesh for a long time, and I think all problems related with skewness and quality are already solved. Also interfaces are correct. Still, I am having troubles for convergence. I suspect the problem is, as it is such a small domain, that a very high gradients for temperature and turbulence variables can be found at the outlet. However, I would like to avoid to extrude it farther out of the compartment... My outlet is, in a first approuch, a pressure-outlet. ¿Any idea on how could I treat this situation? I would appreciate very much any guess. Thanks! raj kumar saini likes this.

January 11, 2017, 16:29	CFD help	#2
drmarcoguevara New Member dr marco guevara Join Date: Jul 2014 Location: Bogota/Colombia And Rio Janeiro Brazil Posts: 11 Rep Power: 12	hi, I can help you with your CFD simulation, please write to me, my email is: maguevaral@ssengineering.com.co

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