Quote:
Originally Posted by aerohead
1) ' pressure drag is the largest component in the aerodynamic drag. Its minimization is the true objective of motor vehicle aerodynamics.'
Hucho, page- 110, top of page.
2) ' The main contributions to the drag force originate from the tear part of the body,' Hucho, page- 61
3) ' low drag can only be achieved when the separation at the rear is eliminated.' Hucho, page- 16.
4) ' Optimum shapes are 'streamlined' bodies having a very slender rear part.'
Hucho, page-61.
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All quite correct!
But none of it addresses the point that attached flow can cause drag (and of course, also thrust).