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Pumping Performance or RBCC Engine under Sea Level Static Condition
JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
Numerical simulations were conducted to predict the ejector pumping performance of a rocket-ramjet combined-cycle engine under a take-off condition. The numerical simulations revealed that the suction airflow was chocked at the exit of the engine throat when the ejector rocket was driven by cold N 2 gas at the chamber pressure of 3 MPa. When the ejector-driving gas was changed from cold N 2 gas to hot combustion gas, the suction performance decreased remarkably. Mach contours in the enginedoi:10.2322/jjsass.56.110 fatcat:3csfjnqtrzcc3ezqyo4xbq2wym