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-   -   lift and drag coefficients around a ground vehicle (http://www.cfd-online.com/Forums/cfx/25018-lift-drag-coefficients-around-ground-vehicle.html)

Pedro January 10, 2008 18:09

lift and drag coefficients around a ground vehicle
 
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!

Glenn Horrocks January 10, 2008 18:32

Re: lift and drag coefficients around a ground veh
 
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

mostafagemy September 5, 2012 15:38

how to get the forces
 
hi Pedro ,
I made the simulation on CFD-post but i do not know how to get the forces so can you tell me .

ghorrocks September 5, 2012 18:31

Use the function calculator and the force_x/y/z functions.


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