Open AccessLow-Noise Operating Mode for Propeller-Driven Electric Airplanes
Author(s) -
Jeffrey J. Berton,
Douglas M. Nark
Publication year - 2018
Publication title -
aiaa/ceas aeroacoustics conference
Language(s) - Uncategorized
Resource type - Conference proceedings
DOI - 10.2514/6.2018-3599
Subject(s) - propeller , noise (video) , acoustics , mode (computer interface) , electrical engineering , aerospace engineering , computer science , environmental science , physics , marine engineering , engineering , artificial intelligence , image (mathematics) , operating system
Nomenclature CP = power coefficient; P∕ρnD CT = thrust coefficient; T∕ρnD D = propeller diameter, ft h = altitude above mean sea level, ft J = advance ratio; V∕nD LAmax = maximum A-weighted noise level, dBA N = shaft speed, rpm n = shaft speed, revolutions∕s P = shaft power, bhp T = thrust, lb V = true airspeed, kt α = angle of attack, deg β = blade pitch angle, deg η = propeller efficiency; JCT∕CP ρ = density, slug∕ft
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