In one embodiment for a helicopter main rotor assembly, a half-plow vortex generator is mounted in combination with the upper aerodynamic surface of each main rotor blade and is operative to generate a primary corotating vortex of sufficient strength to interact with and dissipate the tip vortex generated by the same main rotor blade, thereby reducing blade-vortex interaction noise radiating from the helicopter main rotor assembly. The half-plow vortex generator has a right triangular planform configuration defined by a length, a width, and an apex angle...
[ What is claimed is:] [1.] A vortex generator system for use with a rotor blade defined by a tip chord, comprising:a half-plow vortex generator having a right triangular planform configuration;said right triangular planform configuration being defined by a length, a width, and an apex angle, and an apex height;said apex height, in combination with said length, said width, and said apex angle of said right triangular planform configuration defining the three-dimensional configuration of said half-plow vortex generator; and whereinsaid half-plow vortex ge...
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