i have simulated a cylinder that it has four domains. these domains are concentric,and are fluid,solid, fluid and solid respectively,one of the solids generates heat and there is heat transfer between these domains, interfaces have been modeled too,but CFD post doesn't show any heat transfer, and temperature in solid with heat generation is very high.what are your suggestion for this problem?
another question : what are the effective parameters to reach conservative target?
thanks
Hi,
my suggestion is to fix in CFX-Pre the obviously existing issues in the setup of the interface conditions between the domains. Seems like interface conditions are not properly setup.
Regarding your 2nd question: I do not have the "magic silver bullet" for CFD simulations. CFD is hard work on the cycle between:
Mesh generation --> CFD Setup --> Solution --> critical results analysis --> return to beginning of the cycle with your conclusions.
Regards,
Dr. Th. Frank.
Adding some tip to Dr. Thomas Frank ´s answer: Verify if, for each interface pair, you did have set up the correct face domain pair. It is very common select the wrong face with multidomain composition - the use of "good names" is a best practice to avoid this kind of mistake.
Best Regards!
thanks,CFX defines interfaces automatically and boundaries on interfaces are "conservative interface flux" option only , i define heat generation in a solid and boundary conditions only,but temperature in the solid is very high
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