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U型方管中爆燃向爆震转变特性实验研究 被引量:7

Experimental investigation on characteristics of deflagration to detonation transition in U-bend square tube
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摘要 以脉冲爆震发动机(PDE)用曲管爆震燃烧室为应用背景,对气相(乙烯/空气)燃烧波在U型方管实验器中的传播过程进行了实验研究。通过改变实验器中弯曲段进口气流入射激波强度,基于弯曲段内压力、波速的测量及高速摄影实验得到了U型方管实验器中半圆型弯段内的爆燃向爆震转变(DDT)特性。结果表明,弯曲段中DDT特性受到入射激波速度的影响:当入射激波速度小于794m/s(43.6%VCJ,VCJ为理论Chapman-Jouguet爆震波速),在弯曲段内不能形成爆震;当入射激波速度介于870~908m/s(47.8%VCJ^50.0%VCJ)之间,弯曲段内首先会产生局部爆炸,并最终形成爆震;当入射激波速度大于934m/s(51.3%VCJ),爆燃波可以直接在弯曲段入口转化为爆震波。 For the application of the curved detonation combustor in pulse detonation engine (PDE), in this paper we present the results of experimental investigation on gaseous combustion wave of C2 H4/Air mixture propagation through a U-bend square tube. By changing the incident shock wave speed at the entrance of the bend section in U-bend square tube, the characteristics of deflagration to detonation transition (DDT) in bend section have been researched based on the pressures/velocities measure and high speed photography. When the incident shock wave speed is lower than 794 m/s(43.6% VCJ), the detonation cannot form in the bend section; when the speed is between 870 m/s and 908 m/s(47.8% VCJ-50.0% Voj), the hot spot will be formed firstly and then the detonation will form finally in the bend section; when the speed exceeds 934 m/s (51.3 % VCJ), the deflagration wave will directly transit into a detonation at the entrance of bend section.
出处 《航空学报》 EI CAS CSCD 北大核心 2015年第6期1788-1794,共7页 Acta Aeronautica et Astronautica Sinica
基金 国家自然科学基金(50906072 51306154) 中央高校基本科研业务费专项资金(3102014JCY01003)~~
关键词 爆震 爆燃向爆震转变 U型方管 脉冲爆震发动机 曲管爆震燃烧室 detonation deflagration to dotonation transition U-bend square tube pulse detonation engine curved detonation combustor
作者简介 通讯作者.Tel.:029—88460756,E-mail:qiuhua@nwpu.edu.cn,邱华,男,博士,副教授。主要研究方向:爆震推进应用基础研究,发动机燃烧与流动,非定常推进中的能量高效提取与转化。 王玮,男,博士。主要研究方向:燃气轮机燃烧室燃烧与流动。E—mail:wweiyeah@163.com 范玮,女,博士,教授,博士生导师。主要研究方向:动力装置中的燃烧问题,爆震燃烧,脉冲爆震发动机应用基础研究,燃烧理论,燃烧诊断技术。Tel:029—88492748,E—mail:weifan419@nwpu.edu.cn 熊姹,女,博士,讲师。主要研究方向:爆震燃烧,脉冲爆震发动机应用基础研究,燃烧诊断技术。E—mail:xiongcha@nwpu.edu.cn
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参考文献15

  • 1Fan W, Yan C J, Huang X Q, et al. Experimental inves- tigation on two-phase pulse detonation engine[J]. Corn bustion and Flame, 2003, 133(4): 441-450.
  • 2Roy G D, Frolov S M, Borisov A A, et al. Pulse detona- tion propulsion: challenges, current status, and future perspective[J]. Progress in Energy and Combustion Sci- ence, 2004, 30(6): 545-672.
  • 3Helfrich T M, Schauer F R. Ignition and detonation-initi- ation characteristics of hydrogen and hydrocarbon fuels in a PDE[C]//45th AIAA Aerospace Sciences Meeting and Exhibit. Reston AIAA, 2007.
  • 4Austin J M, Shepherd J E. Detonations in hydrocarbon fuel blends[J]. Combustion and Flame, 2003, 132(1-2)73 90.
  • 5Brophy C M, Hanson R K. Fuel distribution effects on pulse detonation engine operation and performance [J]. Journal of Propulsion and Power, 2006, 22 (6): 1155-1161.
  • 6王玮,邱华,范玮,熊姹,严传俊.螺旋式脉冲爆震发动机实验研究[J].实验流体力学,2012,26(2):12-16. 被引量:4
  • 7王昌建,徐胜利,郭长铭.气相爆轰波在半圆形弯管中传播现象的实验研究[J].爆炸与冲击,2003,23(5):448-453. 被引量:16
  • 8杨志,周凯元,谢立军,刘庚冉.Z型管道中气体火焰传播规律的实验研究[J].火灾科学,2006,15(3):111-115. 被引量:15
  • 9Nakayama H, Moriya T, Kasahara J, et al. Stable deto- nation wave propagation in rectangular-cross-section curved channels[J]. Combustion and Flame, 2012, 159 (2): 859 869.
  • 10Nakayama H, Kasahara J, Matsuo A, et al. Front shock behavior of stable curved detonation waves in rectangular- cross-section curved channels[J]. Proceedings of the Com bustion Institute, 2013, 34(2): 1939-1947.

二级参考文献28

  • 1徐胜利,陈成光,李剑.爆轰波在扩张管内临界传播特性的研究[J].爆炸与冲击,1995,15(1):69-75. 被引量:9
  • 2周凯元,李宗芬,陈志坚.气相爆轰波平衡胞格稳定性实验研究[J].爆炸与冲击,1990,10(2):129-134. 被引量:4
  • 3童秉纲 孔祥言 等.气体动力学[M].北京:高等教育出版社,1989..
  • 4周凯元,李宗芬.丙烷-空气爆燃火焰通过平行板狭缝时的淬熄研究[J].爆炸与冲击,1997,17(2):111-118. 被引量:29
  • 5BUSSING T,PAPPAS G.An introduction to pulse deto-nation engine[R].AIAA1994-0263.
  • 6KANESHIGE M,SHEPHERD J E.Detonation data-base,GALCIT technical report[R].FM97-8(1997).
  • 7CICCARELLI G,DOROFEEV S.Flame acceleration and transition to detonation in ducts[J].Progress in Energy and Combustion Science,2008,34(4):499-550.
  • 8FAN Wei,YAN Chuan-jun,HUANG Xi-qiao,et al.Experimental investigation on two-phase pulse detona-tion engine[J].Combustion and Flame,2003,133(4):441-450.
  • 9AUSTIN J M,SHEPHERD J E.Detonations in hydro-carbon fuel blends[J].Combustion and Flame,2003,73-90.
  • 10BROPHY C M,HANSON R K.Fuel distribution effects on pulse detonation engine operation and performance[J].Journal of Propulsion and Power,2006,22(6):1155-1161.

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