高马赫数涡轮发动机性能模拟  

Performance Simulation of High Mach Turbine Engine

作　　者：刘增文[1] 王占学[1] 

机构地区：[1]西北工业大学动力与能源学院,西安710072

出　　处：《燃气涡轮试验与研究》2013年第6期31-34,共4页Gas Turbine Experiment and Research

摘　　要：对马赫数4.0一级的高马赫数涡轮发动机进行了研究,分析了高马赫数涡轮发动机的结构形式和工作原理,建立了性能计算模型。利用泵理论拓展了发动机的低转速部件特性,对某高马赫数涡轮发动机方案进行了性能计算,并分析了其风车冲压模态的性能变化趋势。计算结果表明,该发动机在马赫数3.7时进入风车冲压模态;由于主燃烧室熄火,其推力在模态转换阶段将出现暂时震荡,比冲将在模态转换点达到最低值。Study on performance of high mach turbine engine with Ma4.0 level was conducted. The struc-ture and operation principle of high mach turbine engine were analyzed, and then the performance simula-tion model was established. The pump theory was used to extend the low-speed component characteristics of engine. The performance of high mach turbine engine was simulated and the varying trend of performance at windmilling ram mode was also analyzed. Results show that the turbine engine would go into windmilling ram mode at Ma3.7, and the thrust would experience temporary fluctuation during mode transition because of the flameout of combustor. The specific impulse would reach the lowest point at mode transition point.

关 键 词：涡轮基组合循环(TBCC)发动机 高马赫数 性能模拟 模态转换 风车冲压 

分 类 号：V236[航空宇航科学与技术—航空宇航推进理论与工程]