吸气式PDE中心锥鳞片阀工作原理与试验研究  

Principle and Experimental Research of Central Cone-Scales Valve for Air-Breathing Pulse Detonation Engine

作　　者：胡焰彬 翁春生[1] 白桥栋[1] 杨建鲁[1] 黄孝龙[1] 

机构地区：[1]南京理工大学瞬态物理国家重点实验室,江苏南京210094

出　　处：《推进技术》2015年第2期161-166,共6页Journal of Propulsion Technology

基　　金：国家自然科学基金(11372141);中央高校基本科研业务费专项基金(30920130112007)

摘　　要：为了增强吸气式脉冲爆轰发动机进气阀的防倒流效果、缩短发动机的燃烧转爆轰时间,设计了中心锥鳞片阀(CCSV),并进行了中心锥鳞片阀(CCSV)与中心锥钝体阀(CCBV)的对比试验研究。采用精细雾化喷嘴作为雾化装置,成功实现了10Hz工况下中心锥鳞片阀吸气式脉冲爆轰发动机的协调工作,爆轰波平均峰值压力为1.65MPa,爆轰波速度为1371m/s。研究结果表明:中心锥鳞片阀(CCSV)具有良好的单向阀功能,有效地防止了燃气倒流,缩短了燃烧转爆轰时间。相比于中心锥钝体阀(CCBV),燃烧转爆轰时间下降了19.03%。For the improvement of the prevention effect of gas refluence on the inlet valve,as well as the shortening time of deflagration to detonation transition,central cone-scales valve （CCSV） was designed for the first time,and together with central cone-blunt valve （CCBV） for comparison. By using the fine atomizer,the air-breathing pulse detonation engine with CCSV realized coordination work successfully under 10Hz condition. The average detonation wave peak pressure and detonation wave velocity are 1.65MPa and 1371m/s,respective-ly. Taking the good function as the one-way valve into account and preventing the refluence of combustion prod-ucts effectively,CCSV also played an important role in reducing the average time on the deflagration to detona-tion transition. Compared with the CCBV,the average time on the deflagration to detonation transition can be re-duced by about 19.03%with CCSV.

关 键 词：脉冲爆轰发动机 燃烧转爆轰 进气阀 试验研究 

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]