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lucifer December 14, 2009 20:59

grid independence questions
 
Hello, I have some questions about grid independence, could someone help me please?
My model is a 2-D chamber filled with air,and the flow in the chamber is laminar,and the temperatures of the walls are constant. Now I want to do grid independence study, should I change the grid numbers of the four walls at the same time or one by one? which parameter should i monitor as the criterion of grid independence?
By the way,if two walls' temperature of the chamber are Tc, one wall's heat flux is contant,the last wall is adiabatic, how can i calculate the Ra?
Waiting for your help,thank you very much!


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