| 太湖水体的总磷分布及湖流对其影响的数值研究 |
| |
| 引用本文： | 马生伟,蔡启铭.太湖水体的总磷分布及湖流对其影响的数值研究[J].湖泊科学,1997,9(4):325-330. |
| |
| 作者姓名： | 马生伟 蔡启铭 |
| |
| 作者单位： | 云南省环境科学研究所!昆明650034(马生伟)，中国科学院南京地理与湖泊研究所!南京210008(蔡启铭) |
| |
| 基金项目： | 国家自然科学基金!49171017 |
| |
| 摘 要： | 用数值模拟的方法研究了太湖水体中ＴＰ分布特征及湖流对其影响，推导，建立了包括平流，水平扩散，沉降和底泥释放的浅水湖泊中污染物浓度分布计算的二维迎风有限元数值模式，并在给定若干点源条件下计算各种稳态流场下太湖水体中的ＴＰ分布。
|
| 关 键 词： | 太湖 水体 磷酸盐 总磷分布 湖流 数值模拟 |
| 收稿时间： | 1996/3/17 0:00:00 |
| 修稿时间： | 1997/3/31 0:00:00 |
Numerical study on the distribution of TP in Taihu Lake and the impact from lake current |
| |
| Ma Shengwei and Cai Qiming.Numerical study on the distribution of TP in Taihu Lake and the impact from lake current[J].Journal of Lake Science,1997,9(4):325-330. |
| |
| Authors: | Ma Shengwei and Cai Qiming |
| |
| Institution: | Yunnan Institute of Environmental Science, Kunming 650034 and Nanjing Institute of Geography & Limnnology, Chinese Academy of Sciences, Kanjing 210008 |
| |
| Abstract: | A new upwinding finite element numerical model, which is two-dimensional and suitable for calculating concentrations of total phosphorus (TP) in shallow lakes considering major controlling factors of a dvection, dispersion, deposition and releasing from bottom, is derived. Moreover it is used in the research on the characteristics and effecting factors of TP distribution in Taihu Lake. Main results are:(1) The model presented is reasonable, valid and cost-effective;(2) Lake current produces certain impact on TP distribution in Taihu Lake. In general.the flow patterns dominated by anticlockwise circulation with a higher speed (velocity) are more beneficial to TP transportation and dispersion process;(3) The ability of diluting purification of the open water in Taihu Lake is much stronger than that of Melliang Bay;(4) Major factors affecting TP concentration are different from region to region in Taihu Lake briefly. in the waterfield to the west of the line of Daojiao Hill-Dalei Hill-Xingtang.the major controlling factors are hydraulic transportation and dispersion, and to the east of the line of Manshan Island-West Hill-Zheshan Hill it is the releasing from the bottom sediment. |
| |
| Keywords: | Total phosphorus numerical simulation transportation and dispersion upwinding finite element method Taihu Lake |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《湖泊科学》浏览原始摘要信息 |
| 点击此处可从《湖泊科学》下载免费的PDF全文 |
