Simplified Approach of Jet Aerodynamics with a View to Acoustics

Abstract

Cp = specific heat, J=kg K or cal=g c = speed of sound, m=s D = jet diameter, m H = total enthalpy, J=kg L = distance from the nozzle LC = laminar core length LM = turbulence peak location LP = sound power peak location LS = jet supersonic length M = Mach number m = mass flow rate, kg=s P = pressure, Pa r = gas constant, J=kg K T = temperature, K U = reduced velocity V = velocity, m=s = mass fraction = specific heat ratio = reduced abscissa