Quote:
Originally Posted by aerohead
I've been spending time with Jaray's development model and I am convinced that even in separated flow,the aft-body still performs a beneficial function.
Without a technical term to draw on,I'm refering to it as 'stuffing the wake.'
And it's a concept aerodynamacists stumbled onto when testing convertibles with the top down.
By placing manikins in the open car they were able to measure lower drag do to this 'stuffing,' and I think that the aft-body of the Bugatti 'tank' is helping to perform this function.
All,except the last of Jaray's models( the full-tail) suffer separated flow very early on the body but do not suffer the drag as would occur at the same point for a Kamm chop,so the tail must serve drag reduction even though it's less than ideal.I believe it's true of all pseudo-fast-back cars.
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That's interesting because I was comparing the type 57 SC rear angles and the Tatra T77's and they look very similar. I thought the Tatara's looked much steeper that the template and the max angles stated in Hucho. The aspect ratio of the cab is very different though and the 57 has all those fenders and grilles going on.
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