Re: Judgement on opposing airfoil views, pt. 1

[Richard Tarara <rtarara@SAINTMARYS.EDU>]

Sorry to pull out such a small piece of a long response..BUT:

----- Original Message -----
From: William Beaty <billb@ESKIMO.COM>
> If it is not the wing that is initially pulling upwards upon the "upwash"
> parcel, then it must be air-parcels elsewhere which do so.  In my opinion,
> we have two options: either the upwash-creating acceleration pulls the
> wing down, or the creation of upwash acts to create downwash elsewhere.
> In either case Newton's 3rd law is satisfied, and conservation of momentum
> is statisfied.

There is NO upwash without the wing (in motion) being present.  The upwash
HAS to be caused by the wing doing  _something_ to the air.  Define this
process _exactly_ and perhaps some of the conflicts will be resolved.

Rick

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Richard W. Tarara
Department of Chemistry & Physics
Notre Dame, IN 46556
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rtarara@saintmarys.edu

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