太湖风生流水动力时空差异特征研究

周媛媛; 刘晓东; 华祖林; 胡功宇; 顾莉; 陈立强

doi:10.16803/j.cnki.issn.1004-6216.2015.01.012

环境保护科学

太湖风生流水动力时空差异特征研究

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周媛媛, 刘晓东, 华祖林, 胡功宇, 顾莉, 陈立强. 太湖风生流水动力时空差异特征研究[J]. 环境保护科学, 2015, (1): 51-56. doi: 10.16803/j.cnki.issn.1004-6216.2015.01.012

引用本文:

Zhou Yuanyuan, Liu Xiaodong, Hua Zulin, Hu Gongyu, Gu Li, Chen Liqiang. Study of the Temporal and Spatial Differences of Hydrodynamic Characteristics of Wind-induced Current in Taihu Lake[J]. Environmental Protection Science, 2015, (1): 51-56. doi: 10.16803/j.cnki.issn.1004-6216.2015.01.012

Citation:

Zhou Yuanyuan, Liu Xiaodong, Hua Zulin, Hu Gongyu, Gu Li, Chen Liqiang. Study of the Temporal and Spatial Differences of Hydrodynamic Characteristics of Wind-induced Current in Taihu Lake[J]. Environmental Protection Science, 2015, (1): 51-56. doi: 10.16803/j.cnki.issn.1004-6216.2015.01.012

太湖风生流水动力时空差异特征研究

1. 河海大学环境学院, 江苏南京 210098;
2. 河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 江苏南京 210098;
3. 河海大学水资源高效利用与工程安全国家工程研究中心, 江苏南京 210098;
4. 长江水利委员会荆江水文水资源勘测局, 湖北荆州 434002

作者简介: 周媛媛(1989-),女,硕士研究生。研究方向:环境水力学。E-mail:zhouyuanyuanQ@163.com

基金项目:
国家科技支撑计划课题(2012BAB03B04)

国家自然科学基金资助项目(51179052,51379060,51379058)

水利部公益性行业科研专项经费(201001028)

江苏高校优势学科建设工程项目基金资助
中图分类号: TV213.3

Study of the Temporal and Spatial Differences of Hydrodynamic Characteristics of Wind-induced Current in Taihu Lake

1. School of the Environment, Hohai University, Nanjing 210098, China;
2. Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes(Ministry of Education), Hohai University, Nanjing 210098, China;
3. National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing 210098, China;
4. Jingjiang Hydrology and Water Resources Surveying Bureau of Changjiang Water Resources Commission, Jingzhou 434002, China
Fund Project:

摘要: 为研究太湖的流场结构,更好实施引清调水方案改善太湖水质。在确定太湖四季主导风向及其平均风速的基础上,采用有限体积Godunov型通量差分裂(FDS)格式构建太湖水动力模型,并得到了实测流场的良好验证。并进一步研究各季节各湖区的流动规律,确定太湖风生流水动力时空差异特征。结果表明:太湖风生流流态特征主要与风向、风速有关;不同季节平均流速由大到小分别为:冬季、春季、秋季、夏季;从不同的湖区看,湖岸区最大、湖湾区次之、湖心区最小。由此可选择冬季、湖岸区实施调水方案改善太湖水质。
- 太湖 /
- 水动力特征 /
- 风生流 /
- 数值模拟 /
- 时空差异
Abstract: In this paper, to study the flow structure of Taihu Lake and implement the clean water diversion program for better improvement of the water quality, the average wind speed and dominant wind direction in four seasons of Taihu Lake is first identified. Then, flux difference splitting (FDS) format of finite volume Godunov-type is used to build up a hydrodynamic model with smooth verification. Furthermore, seasonal flow patterns of each lake area are studied, and temporal and spatial differences of hydrodynamic characteristics of wind-induced current in Taihu Lake are determined. The results show that the flow patterns and characteristics of wind-induced current in Taihu Lake are mainly influenced by wind direction and velocity. The maximal average velocity is in winter followed by that in spring, fall and summer in a descending order. From a view of different lake areas, the maximal velocity in the lakeshore area is the largest, followed by that in the bay area. The velocity in the middle of the lake is the smallest. Therefore, it is suggested that the lakeshore area should be chosen for implementation of the diversion program in winter to improve the water quality.
- Taihu Lake /
- Hydrodynamic Characteristics /
- Wind-induced Current /
- Numerical Simulation /
- Temporal and Spatial Differences

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Citation:

Zhou Yuanyuan, Liu Xiaodong, Hua Zulin, Hu Gongyu, Gu Li, Chen Liqiang. Study of the Temporal and Spatial Differences of Hydrodynamic Characteristics of Wind-induced Current in Taihu Lake[J]. Environmental Protection Science, 2015, (1): 51-56. doi: 10.16803/j.cnki.issn.1004-6216.2015.01.012

太湖风生流水动力时空差异特征研究

作者简介: 周媛媛(1989-),女,硕士研究生。研究方向:环境水力学。E-mail:zhouyuanyuanQ@163.com
1. 河海大学环境学院, 江苏南京 210098;

2. 河海大学浅水湖泊综合治理与资源开发教育部重点实验室, 江苏南京 210098;

3. 河海大学水资源高效利用与工程安全国家工程研究中心, 江苏南京 210098;

4. 长江水利委员会荆江水文水资源勘测局, 湖北荆州 434002

收稿日期: 2014-07-13

基金项目:

国家科技支撑计划课题(2012BAB03B04)

国家自然科学基金资助项目(51179052,51379060,51379058)

水利部公益性行业科研专项经费(201001028)

江苏高校优势学科建设工程项目基金资助

关键词:

摘要: 为研究太湖的流场结构,更好实施引清调水方案改善太湖水质。在确定太湖四季主导风向及其平均风速的基础上,采用有限体积Godunov型通量差分裂(FDS)格式构建太湖水动力模型,并得到了实测流场的良好验证。并进一步研究各季节各湖区的流动规律,确定太湖风生流水动力时空差异特征。结果表明:太湖风生流流态特征主要与风向、风速有关;不同季节平均流速由大到小分别为:冬季、春季、秋季、夏季;从不同的湖区看,湖岸区最大、湖湾区次之、湖心区最小。由此可选择冬季、湖岸区实施调水方案改善太湖水质。

English Abstract

Study of the Temporal and Spatial Differences of Hydrodynamic Characteristics of Wind-induced Current in Taihu Lake

1. School of the Environment, Hohai University, Nanjing 210098, China;
2. Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes(Ministry of Education), Hohai University, Nanjing 210098, China;
3. National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety, Hohai University, Nanjing 210098, China;
4. Jingjiang Hydrology and Water Resources Surveying Bureau of Changjiang Water Resources Commission, Jingzhou 434002, China

Received Date: 2014-07-13

Fund Project:

Keywords:

Abstract: In this paper, to study the flow structure of Taihu Lake and implement the clean water diversion program for better improvement of the water quality, the average wind speed and dominant wind direction in four seasons of Taihu Lake is first identified. Then, flux difference splitting (FDS) format of finite volume Godunov-type is used to build up a hydrodynamic model with smooth verification. Furthermore, seasonal flow patterns of each lake area are studied, and temporal and spatial differences of hydrodynamic characteristics of wind-induced current in Taihu Lake are determined. The results show that the flow patterns and characteristics of wind-induced current in Taihu Lake are mainly influenced by wind direction and velocity. The maximal average velocity is in winter followed by that in spring, fall and summer in a descending order. From a view of different lake areas, the maximal velocity in the lakeshore area is the largest, followed by that in the bay area. The velocity in the middle of the lake is the smallest. Therefore, it is suggested that the lakeshore area should be chosen for implementation of the diversion program in winter to improve the water quality.