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October 26, 2015, 09:14 |
Reynolds Number Matching Confusion
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#1 |
New Member
Eleanor Rajaratnam
Join Date: Nov 2013
Posts: 16
Rep Power: 12 |
Hello guys!
I'm trying to validate some wind tunnel data where they have used a standard 1-box reference model at 0 degrees yaw. Now for my cfd simulation, I have decided to use a half car model with a symmetry plane to lighten the computational load. I assumed that you would have to match your reynolds number with the wind tunnel reynolds number to get an accurate flow field, where the reynolds number is based of the squareroot of the frontal area. However as I'm using a half car, my area is obviously halved and my calculated reynolds number is thus smaller as well. Does this mean I have to increase the inlet velocity to say 66m/s on cfd to accurately reflect the results taken during the windtunnel tests with the the full body at 40m/s? Thanks for all your help! Kind regards, Ele |
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