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August 15, 2016, 08:50 |
Non-engineer needs help with FLUENT!
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#1 |
New Member
Tim
Join Date: May 2016
Posts: 4
Rep Power: 9 |
Hello experts!
I have been posting here and there on the forums for a while now as a self-taught CFD user. I think I’ve come a decent way but need some help with the final parts of a test run. Disclaimer – I’m a palaeontologist, I know next to squat about CFD except what I have taught myself in the past couple of months. What I’m attempting to do is simulate fluid flow over the shells of ammonites; extinct free swimming molluscs. I have 60+ 3D scans I have procured globally and basically would like to extract drag coefficient and torque values for the fossils at different orientations and Reynolds numbers. I have taught myself FLUENT and have successfully validated my method using a 1 m sphere for which I managed to extract a CD of 0.35. Using similar parameters I am simulating flow over a test fossil-scan at 1m/s (See pics). I believe I’m doing things correct but I’m having trouble getting convergence under a standard k-omega model and would appreciate any help. Please bear in mind this is not an engineering issue, I am not interested in precision but in comparable results between fossils Any help would be very much appreciated! |
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