| 浅水中污染物扩散的自适应有限元分析法 |
| |
| 引用本文： | S·俄他那万那,P·德乔姆凡,由海治.浅水中污染物扩散的自适应有限元分析法[J].应用数学和力学,2005,26(12):1425-1435. |
| |
| 作者姓名： | S·俄他那万那 P·德乔姆凡 由海治 |
| |
| 作者单位： | 朱拉隆功大学,机械工程系,曼谷,10330,泰国 |
| |
| 基金项目： | 泰国研究基金（TRF）资助项目 |
| |
| 摘 要： | 介绍浅水中污染物扩散分析中的有限元法.分析包括两个部分:1)流场速度、水面高度的计算;2)根据扩散模型计算污染物浓度场.联合使用了自适应网格技术以期提高解的精度,同时减少计算时间和计算机内存的消耗.通过几个有已知解的实例验证了有限元公式和计算机程序.最后,使用这种联合方法分析泰国Chao Phraya河附近海湾中的污染物扩散.
|
| 关 键 词： | 浅水 污染物扩散 自适应网格技术 有限元法 |
| 文章编号： | 1000-0887(2005)12-1425-11 |
| 收稿时间： | 06 10 2004 12:00AM |
| 修稿时间： | 08 8 2005 12:00AM |
Adaptive Finite Element Method for Analysis of Pollutant Dispersion in Shallow Water |
| |
| Somboon Otarawanna, Promote Deechaumphai.Adaptive Finite Element Method for Analysis of Pollutant Dispersion in Shallow Water[J].Applied Mathematics and Mechanics,2005,26(12):1425-1435. |
| |
| Authors: | Somboon Otarawanna Promote Deechaumphai |
| |
| Institution: | Mechanical Engineering Department , Chulalongkorn University, Bangkok 10330, Thailand |
| |
| Abstract: | A finite element method for analysis of pollutant dispersion in shallow water is presented.The analysis is divided into two parts:1) computation of the velocity flow field and water surface elevation,and 2) computation of the pollutant concentration field from the dispersion model.The method was combined with an adaptive meshing technique to increase the solution accuracy,as well as to reduce the computational time and computer memory.The finite element formulation and the computer programs were validated by several examples that have known solutions.In addition,the capability of the combined method was demonstrated by analyzing pollutant dispersion in Chao Phraya River near the gulf of Thailand. |
| |
| Keywords: | shallow water pollutant dispersion adaptive meshing technique finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
