Quote:
Originally Posted by aerohead
Bear in mind,that in the forebody,the boundary layer is in the most favorable pressure gradient,and is essentially held against the body as long as it is 'attacking' the flow field.
And as Ford aerodynamicists essentially said decades ago,"there is no magic radius",just enough softening and you've got full attachment.
This isn't so for the aft-body which is the major source of drag with road vehicles.Back there you've got to be especially careful with your contours or the whole thing goes to the worms.Control of aft-body separation is the premise for aerodynamic streamlining.
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Aerohead, your answer combined with your aero lessons have already improved my understanding significantly. Thank you.