From: "JACK L. URETSKY (C)1998; HEP DIVISION, ARGONNE NATIONAL LAB ARGONNE, IL 60439" <JLU@HEP.ANL.GOV>
Date: Wed, 11 Aug 1999 17:38:00 -0500
Chuck Britton writes:
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In fact the upper parcel of air reaches the trailing edge BEFORE the
slower,, lower side parcel does. (Thus making the Bernoulli equation
even MORE effective in mathematicizing the lift.)
I suppose that having the two parcels NOT come back together is what
gives rise to the vortex creation??
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In the 2-D solution (I seem to remember) one must introduce circulation
to avoid a singularity at the trailing edge. In the technical language that
I like to impose on students: "Nature abhors a vacuum."
Regards,
Jack
"I scored the next great triumph for science myself,
to wit, how the milk gets into the cow. Both of us
had marveled over that mystery a long time. We had
followed the cows around for years - that is, in the
daytime - but had never caught them drinking fluid of
that color."
Mark Twain, Extract from Eve's
Autobiography