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Old 15th May 2011 | 00:59
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Pugilistic Animus
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Joined: Dec 2006
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From: The No Transgression Zone
Yes, but there are theoretical rules of thumb to take into account scaling differences right?
geometrically similar bodies must simply be compared at the same Rn and Mn, in order to fully appreciate the effects of viscosity and compressibility...

What's an adverse pressure ratio?
pressure increases in the direction of flow prevent laminar flow...if the pressure rise is large a flow reversal occurs...this is laminar flow separation

And what's shear drag?
A synonym for skin friction drag

CliveL that diagram summarizes so much


Do we need a wing at all?
Bear unless it's gliding - a wing is helpful for being able to develops sufficient lift to maintain straight and level of climbing flight...variable geometry wings would be ideal...if the weight increase is not penalizing
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