摘要
利用建立的三维非静力高分辨率高阶湍流闭合模式与随机游动扩散模式研究了一个深凹露天矿区污染物散布的规律，同时在风洞中进行了示踪实验。结果表明，由于凹坑内复环流结构的存在，使得坑内污染物浓度较大，且浓度最大值出现在源的上风侧。数值试验与风洞试验结果吻合较好。
A 3-d non-hydrostatic higher-order turbulence closure numerical model and a random walk method were used to study the characteristics of flow field and pollutant dispersion Meanwhile, the tracer dispersion experiments were conducted in wind tunnel The results of wind tunnel experiments are in good accordance with those of numerical simulations Results show that the pollutant concentration in an open pit is substantially higher than that at the fringe The maximum value is centered upwind the location of the source
出处
《大气科学》
CSCD
北大核心
1999年第1期34-38,共5页
Chinese Journal of Atmospheric Sciences
关键词
复杂地形
风流结构
扩散模式
风洞模拟
污染物
complex terrain non-hydrostatic higher-order turbulence closure model dispersion model fluid modeling in wind tunnel
