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Divergent results for different mesh in convection

Question asked by Oleg Kmechak on Apr 21, 2016
Latest reply on Apr 25, 2016 by Amit Katz

Hi All.


I want to calculate heat flux parameter.
So.. conditions of task is next.. I have floor with some temperature and ceiling with some lower temperature.. conditions on walls is adiabatic.
At first I decided to figure out mesh parameters to optimize accuracy goal and time of calculation. But after some sequence of simulations I realized, that results aren't convergent. They didn't bound to a certain value with higher mesh. Please see picture below and shared source files on google drive:


Google drive Links
HexagonalDome.SLDPRT - Google Drive
Simulation data with different mesh parameters:








Thanks for your attention.
Regards, Oleg.