NUMERICAL SIMULATION OF HYDRODYNAMIC CHARACTERISTICS AND WATER QUALITY IN YANGCHENGHU LAKE
Yangchenghu Lake is located in the North-East of Suzhou city in Jiangsu province, the third large freshwater lake in Taihu Lake Basin. It acts as the regulating center of water system in Yangcheng region. Yangchenghu Lake is a broad-shallow lake that its current is driven mainly by the surface wind and its tributaries. To simulate the lake current more precisely, a three-dimensional flow numerical model is established here with curvilinear orthogonal grid in horizontal direction and sigma coordinate in vertical direction by Delft3D. It simulated the 3D hydrodynamic characteristics of the lake under wind and inflows/outflows and calculated the water exchange among the different water bodies of the lake. Based on the former, a two-dimensional water quality numerical mode was established to simulate the pollutants diffusion and transportation and the simulated results were analyzed. In order to improving water quality of the lake, reducing the pollutant concentration from the tributaries would be effective, especially reducing that from Yanglintang (RW2) and Weijingtang (RW1) in winter. The research in this paper would be useful to guide the water environment management of Yangchenghu Lake in the future.
Yangchenghu Lake three-dimension numerical simulation water quality water ezchange
Yuliang Zhu Juan Yang Jialing Hao Hongyan Shen
Research Institute of Coastal & Ocean Engineering, Hohai University, 1 XikangNanjing, 210098, China College of Ocean, Hohai University, Nanjing 210098, China
国际会议
第16届亚太地区国际水利学大会暨第3届水工水力学国际研讨会(16th IAHR-APD Congress and 3rd Symoposium of IAHR-ISHS)
南京
英文
710-715
2008-10-20（万方平台首次上网日期，不代表论文的发表时间）