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July 11, 2010, 09:48 |
drag calibration for cube
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#1 |
New Member
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Hi all,
in order to simulate drag over my experimental vehicle, I wish to first simulate the domain and the turbulence model on a cube for which there is plenty of info on the web. Cd for a cube at Reynolds10000 to 1000000 is 1.05 I am using the kemodl and an air stream velocity of about 11m/s but I am far off at about cdx=2.3 in the result I admit I haven't reached convergence and I am flying on 262500 cells and 4000 iterations, took me 12 hours. Has anyone got any suggestions on what to change in order to correlate the simulation with the empirical cube results? before I run it on the vehicle cross section. Cheers and have a great week you all. g. |
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