Abstract

For scramjet, the inlet plays the role of capturing airflow, pressurizing and decelerating the airflow, and providing supersonic airflow to meet the combustion requirements for the downstream combustion chamber. In this paper, a prototype inlet is designed by using the method of spiral characteristic lines, and then the influence of moving center cone on the inlet performance is studied by numerical simulation. It can be found that the method of moving the center cone can obviously improve the performance of non-design point and self-starting performance of the inlet.

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