The airframe/propulsion integrated design, analysis and ground test for RBCC launch vehicle

This paper is mainly on the integrated problem of airframe and propulsion for RBCC vehicle. The research will give priority to airframe/propulsion integrated design, analysis and ground test. As the accelerated vehicle which has a wide flight envelope, it must be cleared for research thinking and the relationships of discipline. The object function for the vehicle’s airframe/propulsion integrated design is promoted. The design is based on multi-point optimization which can be used to the variable inlet/nozzle, isolator and flow channel matching design. Considering the complicated flow field in the engine’s channel, the combination of CFD and one dimensional flow is used for the analysis of the whole channel of propulsion. The computations of inlet and nozzle utilize CFD, unlike the isolator and combustor which are analyzed by one dimensional method. The coupling of inflow and outflow is also studied by one dimensional method. The ground test verifies the design for the integration of airframe and propulsion, and the design drawbacks are discovered by the test results. All the drawbacks will be corrected in the following work.