Pressure Thrust

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Lock   10 GW

10 GW
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Joined: May 24 2007 5:46pm
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Pressure Thrust

Post by Lock » May 16 2011 12:58pm

From Aerodynamic Drag to Aerodynamic Drive
by David Birkenstock
A significant increase in fuel economy is possible from a powered aerodynamic design.
Pressure thrust is an aerodynamic phenomenon that, just like its better known sibling, aerodynamic lift, exploits Bernoulli's principle which relates fluid pressure and velocity. The flight and wind tunnel tests referenced below proved an over 40% reduction in total power required, including power for the suction system, against streamlined designs of comparable size.
Full article in the link. Might have applications for fully faired recumbents...

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