| 高精度方法在污染传播中的应用 |
| |
| 引用本文： | 李艳丽,蒋峻峰,洪若瑜.高精度方法在污染传播中的应用[J].计算机与应用化学,2009,26(3). |
| |
| 作者姓名： | 李艳丽 蒋峻峰 洪若瑜 |
| |
| 作者单位： | 1. 北京大学物理学院,北京,100871;北京防化研究院,北京,102205
2. 苏州大学材料与化学化工学部,江苏,苏州,215123 |
| |
| 摘 要： | 使用数值模拟的方法研究污染物的传播.通过提高计算方法在一定网格规模下准确分辩和刻画各种尺度流动结构的能力,从而提高小尺度污染传播数值预报的精度.对常用格式的分辨率进行了细致比较,结果表明紧致格式无论在分辨率,还是在模版尺寸上均有较大优势.此外,在模拟带有局部高浓度区的传播问题时,格式的耗散性直接影响计算的准确性和稳定性,常用的差分格式很难得到理想的结果.而改用紧致格式后,取得了比较理想的效果.
|
| 关 键 词： | 数值方法 紧致格式 污染传播 |
Application of high accuracy scheme in pollution propagation |
| |
| Li Yanli,Jiang dunfeng,Hong Ruoyu.Application of high accuracy scheme in pollution propagation[J].Computers and Applied Chemistry,2009,26(3). |
| |
| Authors: | Li Yanli Jiang dunfeng Hong Ruoyu |
| |
| Affiliation: | 1;3;2*;1.Physics Department;Perking University;Beijing;100871;China;2.Department of Chemistry;Chemical Engineering and Material Science;Soochow University;Suzhou;215123;Jiangsu;3.Research Institution of Chemical Defense;102205;China |
| |
| Abstract: | The propagation of pollution is numerical simulated.The prediction accuracy of pollution propagation is improved by improving the resolution under certain grid scale and the ability of describing various scale of flowing structure.After detailed comparison of resolution commonly used,the results show that compact scheme has its priority over either resolution or template size.Moreover,on the simulation of the propagation problem with local high concentration,the stability and robustness of the simulation ar... |
| |
| Keywords: | numerical method compact scheme pollution propagation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
