组件组合方式对两相PDE总压损失和峰值压力影响  

Effect of test-parts assembly modes on total pressure loss and peak pressure in two-phase pulse detonation engine

作　　者：刘鸿[1,2] 王家骅[1] 王政伟[2] 宫继双[1] 唐豪[1] 张靖周[1] 

机构地区：[1]南京航空航天大学能源与动力学院,江苏南京210016 [2]江苏工业学院机械与能源工程学院,江苏常州213016

出　　处：《推进技术》2010年第1期99-104,110,共7页Journal of Propulsion Technology

基　　金：国家自然科学基金资助项目(50776045)

摘　　要：为了提高脉冲爆震发动机(PDE)的综合性能,在冷态条件下研究了螺旋钝体组件和扰流片钝体组件的总压损失,同时研究了它们在不同工作频率下的爆震波压力,将两者结合起来进行比较,确定相应组件的损失是有效总压损失还是无效总压损失。研究表明:激波反射器能反射、会聚强激波,增加爆震波峰值压力,因此它的总压损失大部分为有效损失;对于两相混气,平面火焰发生器和中心锥的总压损失基本为无效损失;总体上讲,螺旋钝体组件优于扰流片钝体组件。In order to improve the comprehensive performance of Pulse Detonation Engine（PDE） , the total pressure loss of spiral obstacle assembly and circular annular obstacle assembly was investigated under the environmental condition, while the pressure of detonation wave of two assemblies was also studied at various operation frequency. The results of the total pressure loss and detonation wave pressure were compared to determine whether their total pressure loss was effective or not. It is showed that the cone reflector assembly can reflect and focus strong shock waves and improve peak pressure of detonation wave, so its total pressure loss is mainly effective. The generator of quasi-plane waves （GQPW） and central cone total pres- sure loss is basically ineffective for two-phase mixture. As a whole,the performance of spiral obstacle assembly is better than that of circular annular obstacle assembly.

关 键 词：脉冲爆震发动机 有效总压损失 无效总压损失 峰值压力 

分 类 号：V235.22[航空宇航科学与技术—航空宇航推进理论与工程]