|关键词: 超燃冲压发动机 性能预估 数值模拟
|Quasi-Two-Dimensional Evaluation of the Scramjet Performance
REN Xin, LUO Chun-qin, DONG Jian-ming, GUO Xue-lian, MA Xue-song
Science and Technology on Scramjet Laboratory, The 31st Research Institute of CASIC, Beijing 100074, China
|Quasi-two-dimensional method for the computation of the dual-mode scramjet flow path was developed by introducing one-dimensional method for completed combustion to the two-dimensional N-S equation. The influences to the scramjet performance by shock and boundary layer separation were handled by this method.In addition,the thrust and impulse as well as the parameter variations along the axis direction of the scramjet were given in acceptable time. Validated by the computation of a freejet scramjet engine, the effects of different positions of fuel injection and flowpath on the engine performance were analyzed.
|Key words: Scramjet Performance evaluation Numerical simulation