摘要
对丙烷-氧气-空气的混合气体非稳定爆轰波通过90°圆弯管传播特性的变化进行了初步的实验研究.同时实验研究了预混气体的初始浓度和初始压力对非稳定爆轰波经过弯管前后传播特性的影响.实验结果表明,可燃气体非稳定爆轰波经过90°圆弯管后传播速度和压力与直管中相比有了显著地提高.这一研究结果对于工业上安全使用管道阻火器具有重要的实际意义.
Propagation characteristics of unsteady gaseous detonation in propane oxygen air mixtures through 90° bend were studied by experiments. The influence of initial pressure and mass percentage of combustible gas on the detonation parameters before 90° bend and after 90° bend were also investigated. The experimental results indicate that comparing with the fact in straight tube, the velocity and the pressure of unsteady detonation after 90° bend are significantly increased. This conclusion is of great importance for the safe use of flame arresters.
出处
《实验力学》
CSCD
北大核心
2002年第4期438-443,共6页
Journal of Experimental Mechanics
关键词
非稳定爆轰波
90°圆弯管
传播特性
管道阻火器
unsteady detonation
90°round bend
propagation characteristics
flame arresters
