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Diverge with Radiation model in HVAC !

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Old   February 19, 2013, 11:09
Default Diverge with Radiation model in HVAC !
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Astio Lamar
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Hello everyone.

I should use radiation model in a case in order to set radiation emissivity to the walls. when I run without any radiation model, then I have no problem and I got a very smooth converge. But when I use the radiation model and use P1 or Rosseland, then I got diverge!
I try to run without radiation model to have an initial solution, but again I got diverge! I don't know what should I do!!
Anybody here knows what is the problem?!
Thanks

Last edited by asal; February 23, 2013 at 11:48.
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Old   April 4, 2014, 05:11
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Maaz Ul Mosaid
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Try to refine mesh
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Old   April 4, 2014, 09:10
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Hello asal,
are you sure that P1 or Rosseland are the best models for your system?

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Old   January 27, 2023, 22:36
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Quote:
Originally Posted by asal View Post
Hello everyone.

I should use radiation model in a case in order to set radiation emissivity to the walls. when I run without any radiation model, then I have no problem and I got a very smooth converge. But when I use the radiation model and use P1 or Rosseland, then I got diverge!
I try to run without radiation model to have an initial solution, but again I got diverge! I don't know what should I do!!
Anybody here knows what is the problem?!
Thanks
Hi bro, may I know if you solved the issue you posted about radiation model, I faced same one. Thanks in advanced
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