3D Engineering Model of Downburst Evolution in Thunderstorm
Downburst in thunderstorm mainly refers to the outflow on frontier and the strong wind shear caused by the downburst.In this paper, the thunderstorm evolution is divided into three stages as growing, mature and dissipating stages according to its development.Based on meteorological data, trends of relevant parameters are presented.Then with the 3D ring vortices method, the classical fluid mechanics theory is applied through adding linear source model to simulate the distribution of velocity in the wind shear field and its evolution over time.This modeling method could effectively simulate the evolution of downburst, and is suitable for engineering application.
Thunderstorm Downburst Evolution Vortex rings model Linear source model
TANG Chu HONG Guanxin
School of Aeronautics Science and Engineering,Beihang University,Beijing,P.R.Chia
国际会议
北京
英文
141-150
2011-10-01（万方平台首次上网日期，不代表论文的发表时间）