# Compressible flow in the nozzle

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 November 24, 2004, 23:49 Compressible flow in the nozzle #1 Saturn Guest   Posts: n/a Hi, I have a question about compressible flow in tne nozzle. If I have known the function that cross section area A via the distance X along centerline,A = 0.1 + x^2, inlet stagnation pressure(Pi) and outlet pressure(Po) in a nozzle, how should I got the Mach number via distance X relation use qusai-1D equation??? Thanks a lot!!

 November 26, 2004, 05:57 Re: Compressible flow in the nozzle #2 nabeel mohsin Guest   Posts: n/a hi, i think you want to know about solution method or any thing plz tell me can i help you nabeel

 November 29, 2004, 04:22 Re: Compressible flow in the nozzle #3 N Menon Guest   Posts: n/a mach number area relation. if the flow is purely isentropic (can be assumed) centreline Mach number can be obtained using the following relation A/A_star = (1/M^2)*(2/(gamma-1)*(1 + (gamma - 1)/2 * M^2))^((gamma + 1)/(gamma - 1)) A = area at any point in the nozle\ A_star = minimum area of nozzle (throat area) gamma = 1.4 (for air) M = Mach number