地铁站点有害气体扩散三维可视化研究  

Three-dimensional visualization of harmful gas diffusion happened in subway stations

作　　者：简洪登[1,2] 范湘涛 王金鑫[2] 

机构地区：[1]中国科学院对地观测与数字地球科学中心,北京100094 [2]郑州大学水利与环境学院,郑州450001

出　　处：《测绘科学》2013年第1期136-138,141,共4页Science of Surveying and Mapping

基　　金：郑州大学国家大学生创新性实验计划项目(101045921)

摘　　要：本文运用高斯烟羽模型对地铁站点有害气体扩散事故进行三维模拟,计算出了有害气体在各个方向上的扩散距离和任意特定点的的气体浓度,并在三维场景中显示出了等浓度有害气体的扩散范围,以及有害气体扩散事故的三维影响范围。研究结果表明,运用高斯烟羽模型和GIS技术,能够在三维场景中更加直观地表示出有害气体在三维空间上的扩散范围。同时,论文实现并扩展了高斯烟羽模型在三维中的应用。This paper simulated the harmful gas diffusion happened in subway stations based on the Gaussian Plume Model which is suitable for continuous leaking of gases. It calculated the spread distance of harrnful gases in every direction and the concentration of a certain point near to the accident point. The spread range of a certain concentration could be drawn in the scene and the three-dimen- sional range affected by the gas diffusion accident also could be performed as well. The result showed that combining the Gaussian Plume Model with GIS technology, the affected range could be much better visually displayed in 3D scenes. Besides, this paper also realized and expanded the applications of Gaussian Plume Model in three-dimension.

关 键 词：有害气体扩散 高斯烟羽模型 三维场景 三维可视化 

分 类 号：P208[天文地球—地图制图学与地理信息工程]