lift and drag coefficient definition?
i want to calc the forcecoeffs with the "libforces.so" Library. I also got it to work but now i have a problem how the coefficients are defiened?
i know the definition: c_d = (2 * F_d)/(rho*UČ*Aref)
In aeronautics the Aref is the area of the Wing from above ( projected area), and in automobile problems Aref is the projected area from the front.
And for want do i need a lref?
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