环簇式塞式喷管中立体激波的拓扑结构  

Topological structure of stereo shocks in the annular clustered plug nozzle

作　　者：谢侃[1] 任军学[1] 廖云飞[1] 刘宇[1] 

机构地区：[1]北京航空航天大学宇航学院,北京100191

出　　处：《航空动力学报》2009年第1期209-216,共8页Journal of Aerospace Power

基　　金：国家自然科学基金(50476002)

摘　　要：采用仅显示环簇式塞式喷管单元间干涉激波区域网格点作为可视化方法对数值模拟结果进行后处理,得到了直观的三维干涉激波图像,并归纳得到三种干涉激波的拓扑结构和一种脊状能量泄漏区.结合文献中的实验数据分析了三种拓扑结构所造成的干涉损失,为设计提供参考.By using a visualization method which only shows the grids of the stereo shock zones between unites of the annular clustered plug nozzle, the numerical results were reprocessed. From the visualized images of the three-dimension interference shock, three kinds of topological structures of interference shock and a kind of ridge contour of energy leak were summarized. The performance loss caused by these three topological structures was analyzed with the aid of the experimental data, thus providing a reference for further de sign.

关 键 词：拓扑结构 激波 塞式喷管 火箭发动机 

分 类 号：V430[航空宇航科学与技术—航空宇航推进理论与工程]