CFD Numerical Simulation on Three Dimensions Diffusion Concentratio n Field of Indoor Gas Leakage

摘要：

In developing use of natural gas at the same time, due to the natural gas easier to disclosure, flammable, explosive, and so on. What happened at home and abroad by the gas leakage and it becomes a major accidents caused by the death, personal injury and property damage by the year 2001. On the Interior, as a result of the impact of the gas leak counterenasures gave rise to the attention of the parties; therefore, will seriously study the indoor natural gas leakage effect on indoor critical. This article is based on the reference again CFD in numerical simulation models. Simulation results indicate that: the density of the gas is less than the air density gas leak in the vertical direction after the diffusion rate is greater than the horizontal direction of diffusion rate. And, on a different level, the volume of a gas leak has a score distribution springshysteresis period, its height, the longer the period of stagnation. At the same time, in the course of, the leakage of gas leakage reached explos ion limits of volume fraction distribution area a guaranteed level of the zone.

关键词： gas leak numerical simulation CFD concerntation field numerical simulation

作者: Zhang Fu-ren Zhang Hui Long Jiao

作者单位: School of Mechanical and Electrical Engineering, Chongqing Jiaotong University,Chongqing, 400074, China

会议类型: 国际会议

会议名称: The 1st International Conference on Sustainable Construction & Risk Management(首届可持续建设与风险管理国际会议)

会议地点: 重庆

会议语种:英文

页码: 1264-1268

在线出版日期: 2010-06-12（万方平台首次上网日期，不代表论文的发表时间）