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lift and drag coefficients around a ground vehicle

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Old   January 10, 2008, 18:09
Default lift and drag coefficients around a ground vehicle
  #1
Pedro
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Hi

I need to obtain the lift and drag coefficients of a car directly from the cfx-post. I know how to measure the forces in the three directions x y z with the function calculator(lift, drag and side force), but not on how to obtain the coefficients.

I searched through the archives and found limited info; I mean I learned how to obtain the forces only.

What´s the procedure for the coefficients?

Thanks!
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Old   January 10, 2008, 18:32
Default Re: lift and drag coefficients around a ground veh
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Glenn Horrocks
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Hi,

You need density, a reference area and a velocity. You can also get these from CFX-Post. Then calculate the coefficients from there.

Glenn Horrocks
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Old   September 5, 2012, 15:38
Default how to get the forces
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mostafa
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hi Pedro ,
I made the simulation on CFD-post but i do not know how to get the forces so can you tell me .
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Old   September 5, 2012, 18:31
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Glenn Horrocks
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Use the function calculator and the force_x/y/z functions.
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