Quote:
Originally Posted by aerohead
Didn't have to. I was only relating the original values, from the original locations measured, at the original, lower velocity, to a new, higher reference value, consistent with other pressure profile reporting in the literature. Which allows comparison at equal velocities, something lacking in the original presentation. Apples to apples!
The car's contour doesn't change, nor it's influence.
The obvious discrepancy between delta-P, from forwards, to rearwards stagnation points, and the implication, as to drag coefficient is interesting to me, being 180-degrees out of phase with convention.
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As has been pointed out by the other posters, it's quite impossible to calculate comparative drag values between different cars by viewing only their centreline pressures. Your claim to have done so just indicates that your knowledge and understanding of car aerodynamics is quite poor.
As I say - I don't mind if you don't understand; it's when you mislead others that it bothers me.