Integrated design and performance research of waverider forebody/inlet

A method to compute the flow field from given shock wave was developed, and intersected cones that can generate three closed shock waves were designed. Based on the intersected cones, a waverider forebody that can generate three attached shock waves as well as a comparative reference waverider forebody that can generate one attached shock wave and two plane shock waves were designed. To better understand the performance of two forebodies, three-dimensional flow field simulation of two forebodies integrated with hypersonic inlet was conducted. The computational results show that the performance of original waverider is much better than that of comparative reference waverider. Compared with the comparative reference model, the flow coefficient and the recovery coefficient of total pressure are increased by 3.4% and 8%, respectively. The distortion coefficient of inlet is decreased by 8.8%. Two waverider forebodies integrated with hypersonic inlet show better performance in high mach number and positive attack angle region than that in low mach number and negative attack angle. CFD predictions show that the design mach number of waverider forebody should be less than the flight mach number, and the positive attack angle should be taken for waverider.