首页> 外文期刊>Combustion Science and Technology >EXPERIMENTAL STUDY OF THE PREHEAT ZONE FORMATION AND DEFLAGRATION TO DETONATION TRANSITION
【24h】

EXPERIMENTAL STUDY OF THE PREHEAT ZONE FORMATION AND DEFLAGRATION TO DETONATION TRANSITION

机译:预热区形成与爆轰过渡过程的实验研究

获取原文
获取原文并翻译 | 示例
           

摘要

The authors present experimental studies of the deflagration-to-detonation transition (DDT) in tubes with smooth and rough walls in stoichiometric hydrogen-oxygen and ethylene-oxygen mixtures. On the basis of experimental evidence, it is shown that formation of the preheat zone, where reaction is chemically frozen, promotes the transition to detonation if temperature and width of the preheat zone are above certain critical values. A sequence of high-speed Schlieren records permits an accurate determination of the minimal values of temperature and width of the preheat zone, leading to transition to detonation. The experimentally measured critical temperatures and widths of the preheat zone initiating restructuring of the flame and transition to detonation in hydrogen-oxygen and ethylene-oxygen mixtures are consistent with the developed theory.
机译:作者介绍了在化学计量的氢-氧和乙烯-氧混合物中具有光滑壁和粗糙壁的管中的爆燃-爆轰过渡(DDT)的实验研究。根据实验证据表明,如果预热区的温度和宽度超过一定的临界值,则化学反应被冻结的预热区的形成会促进向爆炸的转变。一系列高速Schlieren记录可精确确定预热区的温度和宽度的最小值,从而导致爆轰。实验测得的临界温度和预热区的宽度可引发火焰的重组,并在氢氧和乙烯氧混合物中转变为爆轰,这与已开发的理论是一致的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号