Normalized Dispersion Prediction Model for Toxic Release under Variable Wind Conditions

摘要：

　　The classical Gaussian plume and puff dispersion models for continuous and instantaneous release respectively are only applicable to constant wind velocity and fixed wind direction.For the unsteady dispersion under variable environmental conditions(wind direction and wind velocity) and various release states,a normalized dispersion prediction model is put forward,which is applicable to multiple changes of wind direction and wind velocity under the conditions of instantaneous,continuous and irregular release.Based on the coordinate transformation,the concentration distribution of a single puff is determined by tracking the trajectory of the puff center which represents puff motion.The concentration field of unsteady dispersion is further obtained by the superposition of continuous puff releases.

关键词： Continuous release Dispersion model Irregular release Variable wind direction Variable wind speed

作者: REN Ling CHEN Jian-guo DU Zheng

作者单位: School of Mechanical Engineering,University of Science and Technology Beijing,P.R.China,100083 Department of Engineering Physics,Tsinghua University,P.R.China,100084

会议类型: 国际会议

会议名称: ISCRAM ASIA 2012 Conference on Information Systems for Crisis Response and Management (危机响应与管理信息系统亚洲区国际会议(ISCRAM ASIA 2012))

会议地点: 北京

会议语种:英文

页码: 363-367

在线出版日期: 2012-10-17（万方平台首次上网日期，不代表论文的发表时间）