Anechoic Wind Tunnel Testing of Anti-Phase Vortex Reduction Control for Rotor Noise Suppression

THE GOAL OF THE PROPOSED WORK IS TO FABRICATE AND TEST ROTOR BLADES DESIGNED BY NASA TO DEMONSTRATE THEIR CONCEPT RELATED TO ANTIPHASE VORTEX REDUCTION FOR NOISE SUPPRESSION. AT PENN STATE AN OPEN SECTION ANECHOIC WIND TUNNEL IS AVAILABLE TO CONDUCT SUCH TESTS. IN ADDITION ELECTRICAL MOTORS POWER SUPPLIED AND THIRTY-TWO 1/4 DIAMETER MICROPHONES ARE AVAILABLE TO CONDUCT THE TESTING. THE EFFORT WILL TEST A BASELINE OFF-THE-SHELF ROTOR (20 CM. RADIUS) AND THE NASA PROPRIETARY ROTOR PLATFORM DESIGNS TO BE PROVIDED BY NASA. PENN STATE SHALL FABRICATE THE ROTOR OUT OF ALUMINUM USING 3D PRINTING TECHNIQUES. TESTS WILL BE CONDUCTED BOTH IN HOVER AND FORWARD FLIGHT CONFIGURATIONS.