A Numerical Study on the Combustion Characteristics of RBCC Engines Based on Embedded Rocket Configurations

The RBCC engine can be classified into three types(Axisymmetric, Wall-attached rocket, Strutjet) based on the internal embedded rocket configuration.In this study, five test conditions were established by varying the rocket chamber pressure and combustor length for each engine type, and the performance characteristics of each type were compared and analyzed through computational analysis.The results of the computational analysis showed that the Strutjet type exhibited the highest combustion efficiency.In contrast, for the other types, the combustion efficiency was low if sufficient length was not secured.It was confirmed that while a certain combustor length is necessary for high combustion efficiency, exceeding this length does not significantly impact the combustion efficiency. RBCC 3 (Axisymmetric, Wall-attached rocket, Strutjet) . , 5 , . , Strutjet , , .