摘要
利用计算流体动力学软件AutoReaGas定量研究障碍物、障碍物阻塞比对开敞空间可燃气云爆炸超压场的影响以及爆燃超压随测点距离变化的分布规律。研究结果表明:当有障碍物存在时,爆炸峰值超压会显著增加,且峰值超压随着障碍物阻塞比的增加而增加。对于有障碍物条件下开敞空间的丙烷气云爆炸,无论是气云内部还是气云外部,随着距爆心距离的增加,峰值超压都有减小的趋势。
The CFD software, AutoReaGas, was used to provide a quantitive description of the effects of obstacle and blockage ratio on explosion overpressure field and the trend of overpressure along with distance from gauge to explosion center. The results show that peak overpressure will sharply increase when obstacle exists. Moreover, peak overpressure will also increases with the increase of blockage ratio. Whether inside of the cloud or outside, peak overpressure will decrease with the increase of distance from gauge to explosion center in case of propane vapor explosion.
出处
《中国安全科学学报》
CAS
CSCD
北大核心
2009年第6期35-40,共6页
China Safety Science Journal
基金
国家安全生产监督管理总局项目(05-003)
关键词
丙烷
蒸气云爆炸
超压
数值模拟
障碍物
propane
vapor explosion
overpressure
numerical simulation
barriers
