旋转爆轰燃烧室结构及稳定性研究  

Research on the structure and stability of rotating detonation combustor

作　　者：苗淼 邓博阳 郑洪涛[2] 

机构地区：[1]海军装备部,西安710021 [2]哈尔滨工程大学动力与能源工程学院,哈尔滨150001

出　　处：《燃气涡轮试验与研究》2015年第5期6-13,共8页Gas Turbine Experiment and Research

摘　　要：基于二维可压欧拉方程,对充有当量比为1的氢气/空气预混气的不同结构燃烧室进行数值计算。研究了爆轰波在不同坡度燃烧室内的传播过程,分析了燃烧室内不同波头数目对其性能的影响。研究表明:在燃烧室入口端采用适当的楔形结构,有助于提高沿单一方向传播的爆轰波的强度,提高燃烧室做功能力;当燃烧室周向尺寸较大时,同时起爆双波头有助于提高其工作的稳定性。Based on the two dimensional compressible Euler Equation, the numerical simulation on combustor with different structures was carried out. The fuel in the combustor was H2/air premixed gas and the equivalent ratio was 1. The propagation process of detonation wave in combustor with different slope entrances was studied, and the effect of different wave numbers on the combustor performance was analyzed. The results show that the appropriate slope for the combustor entrance can increase the intensity of the detonation wave which propagates along a single direction, and increase the working capacity of combustor. Initiating double detonation wave at the same time can improve the working stability of eombustor when its circumferential size is lager.

关 键 词：燃气涡轮 低污染燃烧室 旋转爆轰 障碍物 双波头 增压比 

分 类 号：V231.3[航空宇航科学与技术—航空宇航推进理论与工程]