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traindriver (Automotive)
19 Nov 03 22:06
Can anyone provide the basic calculations for converting Cd and Cl in real force numbers. I have volumns of tunnel data in coefficient form and I need to convert it to force numbers so the end user can understand it.
Thanks
aerobab (Aerospace)
20 Nov 03 10:30
Ummmm.....I'm presuming this is what you are looking for:
L = 0.5*(rho)*(V^2)*(Planform Area)*Cl
D = 0.5*(rho)*(V^2)*(Planform Area)*Cd
where L = Lift
D = Drag
rho = fluid (air?) density
V = relative freestream velocity of working fluid
Cheers,
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