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Old 01-28-2010, 02:49 PM   #19 (permalink)
Moderate your Moderation.
Join Date: Nov 2008
Location: Troy, Pa.
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Pasta - '96 Volkswagen Passat TDi
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Phil -

I gotta be honest here; I'm not entirely sure I understand exactly what is going on in your mind with this one.

I'm desperately trying to follow, but from what I can tell, your pattern (it's yours, right?) suggests that for attached flow, we'd need something along the lines of a 30 foot long vehicle with a bull nose, which doesn't seem to follow the logic of a 3:1 relationship between length and frontal area.

Could I trouble you to elaborate a bit more?

EDIT: I think I understand a little bit better, after having re-read the text and taking a more detailed look at the images. I do, however, still have a question - since the profile of the divine shape is a curve, at what point do we measure the angle of descent?

I notice in your image that it states a 22* angle at approximately 1/4 of the distance from the tail tip to the "12 o'clock", or the area at which cross sectional diameter is the largest. Is that the proper measurement there, or do we average the slope of the full form against the flat center line?

Also - does this apply as is to a land-vehicle, when given the ground effect?
"ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"

Last edited by Christ; 01-28-2010 at 03:03 PM..
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