摘要
用ＴＶＤ格式数模拟了初压在０．１～１．０ＭＰａ，３Ｈ２＋Ｏ２的爆轰波与固壁的反射特性，以及初压在１．０ＭＰａ，３Ｈ２＋Ｏ２的爆轰波与初压在０．００２～０．３ＭＰａ范围内的卸煤气体（Ｎ２）的相互作用特性。并在φ１００ｍｍ的爆轰试验管上进行实验验证。结果表明：串接卸爆段后的反射峰压比不串接卸爆段时降低了８３％左右；定常驱动时间比反射激波时可延长４０％。驱动段产生的定常驱动时间可达到１ｍｓ／ｍ。
The interaction of hydrogen-oxygen detonation waves with interface was studied. The reflected pressure profile of detonation waves interaction with rigid wall and with gasoous interface is numerically simulated with TVD scheme where initial pressure is 0.1～1.0 MPa, the ratio of H2/O2 is 3, The numerical results were verified by the experiments in the detonation tube of 100mm inner diameter and of 11.3m length.The results indicated that the reflected pressure peak on the end platewas dropped to 83% on the end of detonation tubel The driver time was40% longer than that with reflecting shock wavesl; The driver-time produced is about 1 ms/m.
关键词
氢氧
爆轰波
爆轰驱动
激波管
卸爆段
oxy-hydrogen
detonation wave
detonation driver
shock tube
damping-section
interface
