摘要
气云爆轰实验研究在一根专门设计的管中进行，通过对压力波和火焰阵面的测试，研究激波的成长与发展过程，气云爆轰的爆速及其影响因素以及激波后的点火诱导时间。理论研究考虑了液滴在高温、高压和高速气流中的变形、剥离和破碎，液滴的点火和局部爆炸以及气云爆轰的Ｃ－Ｊ判据。据此进行的计算进一步揭示了气云爆轰的松弛结构。爆速的计算值与实验值基本相符。
Spray detonation experiments were conducted in a speciallydesigned tube. The generation and development of shock waves induced byan accelerative combustion flame, the ignition delay of micromist and thespray detonation velocity can be discussed by the measurements ofshock waves and combustion flames.A model of spray detonation was developed in this paper, consideringthe droplet deformation stripping and breakup, the ignition and local explosions of the micromist and CJ criterion. Based on it, the relaxation struc ture of spray detonation was taken into account by calculationsComputed and measured results of detonation velocity were in goodagree ment.
基金
国家自然科学基金
关键词
爆轰
激波
两相燃烧
爆轰管
两相爆轰
detonation
shock wave
two phase combustion
combustion tube
two phase detonation
