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March 18, 2013, 09:51 |
Cold Glass Surface And Air Behavior
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#1 |
New Member
Maher Al Taweel
Join Date: Mar 2013
Posts: 4
Rep Power: 13 |
Hello!
I have a problem with a temperature and speed simulation of air. I want to simulate the behavior of the air in a large room (21 x 18 x 6). I have fix floor and wall temperatures. And I have a large glass surface with a low temperature around 270 K. Therefore, I would consider lifting forces with respect to gravity and density differences. The physical characteristics that I have chosen are: Three dimensinal gradients steady gas (air) Coupled flow turbulent Reynolds-averaged Navier-Stokes K-epsilon Realizable k-epsilon two layer Two-layer all y wall treatment Gravity After some itterationer Redisualen becomes very large and the simulation stops. How do I resolve this problem? |
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March 19, 2013, 06:39 |
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#2 |
Senior Member
siamak rahimi ardkapan
Join Date: Jul 2010
Location: Copenhagen, Denmark
Posts: 220
Rep Power: 17 |
You can run the simulation first by changing the solvers to be first order. If it did not diverge, let it to be converged completely and then change it one by one to second order.
__________________
Good luck Siamak |
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March 20, 2013, 07:39 |
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#3 | |
New Member
Maher Al Taweel
Join Date: Mar 2013
Posts: 4
Rep Power: 13 |
Quote:
Best regards Maher A. |
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