摘要
燃气的泄漏和扩散会对人员和环境造成极大的危害,为此,利用CFD方法对燃气连续性泄漏后的扩散现象进行了数值模拟.以丙烷为例,着重研究了障碍物宽度、燃气泄漏速度、风速、泄漏源与障碍物的距离等因素对燃气的扩散过程的影响.在大量数值模拟数据的基础上,经分析得到了燃气在扩散过程中遇障碍物阻挡时的分布规律.
The release and dispersion of flammable gas has greatly harmful to human and environment. In this paper, CFD method was applied to study the continuous point source release and dispersion. Taking propane as an example, the relationship between the surface area of the flammable heavy gas and the release velocity, wind velovity, the width of the obstacle was analysed. On basis of the numerical simulation, the dispersion rule of flammable gas was presented.
出处
《河北工业大学学报》
CAS
2007年第3期1-6,共6页
Journal of Hebei University of Technology
基金
国家自然科学基金(50676028)
关键词
燃气
数值模拟
气体泄漏
可燃区域
扩散
flammable gas
numerical simulation
gas release
flammable area
dispersion
