Crocco's three-dimensional nozzle admittance theory is extended to be applicable when the amplitudes of the combustor and nozzle oscillations increase or decrease with time. An analytical procedure and a computer program for determining nozzle admittance values from the extended theory are presented and used to compute the admittances of a family of liquid-propellant rocket nozzles. The calculated results indicate that the nozzle geometry entrance Mach number and temporal decay coefficient significantly affect the nozzle admittance values. The theoretical predictions are shown to be in good agreement with available experimental data.
The prediction of three-dimensional liquid-propellant rocket nozzle admittances
1973-02-01
Report
No indication
English
Scaling of rocket nozzle admittances
AIAA | 1974
|Scaling of Rocket Nozzle Admittances
AIAA | 1975
|Liquid propellant rocket engine nozzle with passive condensate cooling
European Patent Office | 2021
|