Re: [T3] cooling

["Jim Adney" <jadney@vwtype3.org>]

On 14 Dec 2000, at 23:49, JaransonT3@aol.com wrote:

> Actually, I think I have it right, although your question caused me to
> rethink it again.  I will need to double check my aero references at
> work tomorrow, but.....  I think I remember correctly that the
> convention is pressure acting normal to the surface is positive upward
> nad away from the surface...thus creating positive lift.

Weird! I can understand stating lift as upwards being positive, but 
using this to define pressure "backwards" seems all wrong. 
Besides, what do you do when the surface is vertical (side of the 
car) and there is NO vertical force component? Seems to me that 
we are close to that over the louvers....

Please check and let us know what the convention is.

-
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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