基于动网格的脉冲爆震发动机性能研究

推进技术 ›› 2010, Vol. 31 ›› Issue (5): 629-633.

基于动网格的脉冲爆震发动机性能研究

姜云峰,王云雷,郭昆

北京航空航天大学自动化科学与电气工程学院;北京动力机械研究所;北京动力机械研究所

发布日期:2021-08-15

Performance investigation on pulse detonation engine using dynamic mesh method

Automatical Science and Electronical Engineering School,Beijing Univ.of Aeronautics and Astronautics,Beijing 100191,China;Beijing Power Machinery Research Inst.,Beijing 100074,China;Beijing Power Machinery Research Inst.,Beijing 100074,China

Published:2021-08-15

摘要/Abstract

摘要： 为了获得以工程应用为背景的脉冲爆震发动机(PDE)模型可靠的性能评估方法,应用数值模拟与经验数据相结合的方法计算了某多管旋转阀PDE的性能。结果显示:采用动网格技术可以获得冷态填充过程中发动机的充填系数;结合煤油爆震的数据得到所设计的六管旋转阀PDE的平均净推力为827.8N。该方法融合了CFD计算和试验数据,为今后PDE性能估算提供了很好的参考。

关键词: 脉动式喷气发动机;动网格;净推力;性能研究

Abstract: To obtain the credibility method of performance evaluating for the pulse detonation engine (PDE) for engineering applications.The numerical simulation and experimental data are used to get the net thrust of 6-tube rotary valve PDE.The results show that the engine filling coefficient in filling process of cold state can be acquired by dynamic mesh technique,the net thrust of 6-tube rotary valve PDE equals 827.8N using kerosene detonation data.

Key words: Pulsejet engine;Dynamic mesh;Net thrust;Performance investigation

姜云峰,王云雷,郭昆. 基于动网格的脉冲爆震发动机性能研究[J]. 推进技术, 2010, 31(5): 629-633.