Snaps

[Jerry Budd]

>In a message dated 4/14/2004 6:08:15 PM Central Daylight Time, 
>jbudd at QNET.COM writes:
>
>  >Isn't the definition of a stalled wing just that it doesn't have
>>laminar flow?  That is entirely possible in a downline with sharp
>>elevator input (think less extreme version of a TOC plane's
>>parachute or wall).
>
>I think you mean separated flow (vs attached flow).  When the flow
>separates from the upper airfoil surface the pressure distribution
>over the top wing surface breaks down resulting in a loss of lift.
>If you then reduce the angle of attack the flow will (generally)
>reattach.  I say generally because at lower Reynolds Numbers the flow
>may not reattach right away.
>
>Laminar (and turbulent) flow have to do with the boundary layer
>gradient on a surface exposed to a flow field.  It's almost
>impossible to have laminar flow on a model operating in the Reynold's
>Number ranges we do, the flow is pretty much always turbulent, all
>the time.
>
>Jerry
>
>Jerry, I just love it when you talk like that.  You silver tongued devil
>
>D

Ahem.  College.

(get ready for some more)
-- 
___________
Jerry Budd
mailto:jbudd at qnet.com
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