一种基于微推偏技术的斜切喷管设计方法  

Design of Scarfed Nozzle Based on Mini-misalignment

作　　者：王君祺[1] 房雷[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《航空兵器》2009年第4期62-64,共3页Aero Weaponry

摘　　要：对某锥形斜切喷管扩张段在喉部流线偏离喷管轴线情况下的流场进行了三维数值模拟,得到喷管侧向力曲线。提出将斜切喷管出口设计在侧向力零点附近,以减小上游非平衡扰动带来的推力偏心震荡。仿真结果表明,该方案是有效的。针对实际工程问题中结构的局限性,提出减小预置推力偏心震荡的可操作性建议。This paper gives the side force curve of a scarfed nozzle by 3D numerical simulating the flow field of divergent nozzle with deflected stream line at throat area off the nozzle axis. To decreasing the thrust misalignment shake as result of non-symmetric disturbance in upriver field, it puts the nozzle outlet nearby the zero point of the side force curve. The numerical simulation results show that the scheme is effective. Considering the structure limit in engineering, the paper presents some operation proposals to decrease the thrust misalignment shake.

关 键 词：斜切喷管 微推偏 推力偏心 数值模拟 

分 类 号：TJ760.622[兵器科学与技术—武器系统与运用工程]