herbgh
Joined: 10 Jan 2006
Posts: 145
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 Posted: Tue Mar 28, 2006 8:03 am Post subject: Turbulent airfoils and barns |
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Guys
No doubt a barn door will fly.. I suspect that the whole leading edge
becomes one large vortex generator?  The problem might be in
designing a horizontal stab to offset the large pitching movements?
Large divergence between CG and CL?? The angle of attack between
flying and stalling would be very small? If so, that would be an
exciting ride!
Laminar flow vs turbulent flow airfoils.. Ours are turbulent to
begin with.. By definition anyhow.. Vortex generators trip the boundary
layer, such as it is on a Kolb..Probably ain't much there in the first
place? That is why placement must be fairly critical.. Too far back
and they are in the turbulent flow which would have little effect.
Pretty sure that the center of lift on the Kolb wing is in front of the
spar.. is that correct?
Herb
do not archive
On Tue, 28 Mar 2006 02:03:50 -0500 "Ed Chmielewski"
<edchmiel(at)mindspring.com> writes:
[quote]
<edchmiel(at)mindspring.com>
And Langewiesche is flippin' over about now, too.
Ed in JXN
Do not archive.
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