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March 1, 2011, 11:45 |
problems in modeling hypersonic flow
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#1 |
Senior Member
Join Date: Mar 2011
Location: Germany
Posts: 552
Rep Power: 20 |
hi all
i am trying to model hypersonic flow over 2D cone of length 0.5m, diameter 0.15838m and half cone angle of 9 degrees. M.No=6.77 density based,implicit and steady solver i have used Standard k-e,Realizable k-e and SST k-w turbulence models During iterations it says temperature and pressure limited to default values(ofcourse that are in limit panel), sometimes it says time-step reduced in some cells due to excessive temperature change. After some iterations solution diverges and iterations stop by saying that floating point exception I dont know where i am going wrong. Please give some suggestions as i am really stuckup. I have to find CL,CD,CM values for 0 and 60 degrees angle of attack |
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