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November 24, 2017, 10:06 |
FLUENT Bad results
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#1 |
New Member
Giacomo Dall'Olio
Join Date: Nov 2017
Posts: 1
Rep Power: 0 |
Hi Guys,
I'm having a trouble finding drag forces over a motorbike. I get a drag force of about 40 N which give me a Cd of about 0.07 This result is obviously wrong , the magnitude of Cd is usually around 0.5 in this case... The case seems well scaled, Mesh is ok ( not wrong enough to give such a bad result, i hope ) k-epsilon realizable Residual of k,epsilon, continuity around 1e-02 Residuals of speeds aroun 1e-05 Energy below 1e-07 cd and cl almost constant after 1000 iter. Where can i start to find the cause of my problems ? I ' ll appreciate every tipe of aid. Thanks a Lot G |
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