Cascaded micro-groove aerodynamic drag reducer

Details Cascaded micro-groove aerodynamic drag reducer Cascaded micro-groove aerodynamic drag reducer

1985-09-30

1987-03-17

Barefoot, Galen

Aeronautics and astronautics

Aircraft structure

Details

244200, 138 38, B64C 138

Patent

active

046501380

ABSTRACT:
A cascaded micro-groove aerodynamic drag reducer is provided by creating a plurality of spaced-apart, microscopic grooves in the aerodynamic surface. Each of the grooves is defined by oppositely disposed side walls with each of the side walls of each groove having at least one catenary shaped surface provided thereon. In the preferred embodiment, each of the side walls is provided with a plurality of catenary shaped surfaces with each of the catenary shaped surfaces having a plurality of smaller catenary surfaces provided thereon.

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Salisbury, David F., "A Groovy Solution for Engineers Who Find Turbulence a Real Drag", Christian Science Monitor, Feb. 10, 1984, p. 4.

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