Tone noise of three supersonic helical tip speed propellers in a wind tunnel

• 1 June 1979
• journal article
• Published by Acoustical Society of America (ASA) in The Journal of the Acoustical Society of America
• Vol. 65  (S1) , S139
• https://doi.org/10.1121/1.2017100

Abstract

Keywords

• SUPERSONIC FLOW
• BACKGROUND NOISE
• NOISE CONTROL
• NOISE REDUCTION
• ENERGY CONSERVATION
• PROPELLERS
• WIND TUNNELS
• WIND TUNNEL
• MACH NUMBER
• AIRCRAFT NOISE
• ACOUSTICS
• SOUND PRESSURE
• AERODYNAMICS
• PERFORMANCE
• SUPERSONIC SPEED
• TURBOPROP ENGINES
• HARMONICS