PPRuNe Forums - View Single Post - Downwash, momentum
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Old 29th December 2004 | 14:57
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rotateandfly
 
Joined: Mar 2004
Posts: 28
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From: Canada
HAHAHA, good morning to ya BOAC!

Ive already explained f=m x a in my project, but thanks anyway. Actually what Im looking for is the momentum acting on the airfoil. I believe its p (momentum) = m (mass of the aircraft) x v (speed of wing through the air). Well, the airfoil travels through the relative airflow at an angle. and the momentum from the relative airflow is deflected downward when it hits the wing, namely downwash. This "downwash" is a part of the total momentum that came with the relative airflow, and the other part is lift i believe. But what my q is, is which direction the two part momentums would go. Because if you connect them a parallel figure should occur.

Im not sure if Im asking too much or if my theory even makes sense lol. Dont hate me!

Thanks a bunch, mk?!

-Dave
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