PASSIVE DRAG MODIFICATION SYSTEM
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United States of America Patent
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Jan 15, 2015
app pub date -
Mar 8, 2013
filing date -
Mar 8, 2012
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Abstract
The present invention is directed to a micro-array surface that provides for drag reduction. An aerodynamic or hydrodynamic wall surface that is configured to modify a fluid boundary layer on the surface is provided. The wall surface has a plurality of cavities defined therein the surface. In various examples, the interaction of the cavities with a flow of fluid relative to the wall surface is configured to form a plurality of stable, embedded cavity vortices such that a partial slip condition is produced over the wall surface.
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