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Moving floor/ground approximation?

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Old   January 20, 2010, 01:52
Default Moving floor/ground approximation?
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I'm working with CFDesign doing some basic analysis of wings and diffusers on racecars, and having trouble getting my head around how I would simulate the ground moving beneath the car such as in a rolling road windtunnel? Basically the air needs to move twice as fast past the ground compared to the model.. any ideas?

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Old   January 20, 2010, 12:53
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Ground moves with same velocity as the air. You need to impose a tangential velocity to the ground in your simulation.
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Old   January 20, 2010, 14:06
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Much appreciated, I'm not familiar with that in CFDesign but I'll give it a shot.
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