| 三峡水库香溪河库湾水动力特性分析 |
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| 引用本文： | 纪道斌,刘德富,杨正健,肖尚斌.三峡水库香溪河库湾水动力特性分析[J].中国科学:物理学 力学 天文学,2010,40(1):101-112. |
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| 作者姓名： | 纪道斌 刘德富 杨正健 肖尚斌 |
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| 作者单位： | ① 三峡大学土木水电学院, 宜昌443002;
② 武汉大学水利水电学院, 武汉430072;
③ 中国科学院地球环境研究所, 西安710075 |
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| 基金项目： | 国家“十一五”科技支撑计划(编号: 2008BAB29B09)、国家水体污染控制与治理科技重大专项子课题(编号: 2008ZX07104-004)和国家自然科学基金(批准号: 50679038)资助项目 |
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| 摘 要： | 为研究解决三峡水库支流库湾水环境问题, 必须探明三峡水库支流库湾的水动力过程. 基于2008年的野外观测数据, 对香溪河库湾水流速度、水温、浊度、水位、流量等因子进行分析. 结果表明香溪河库湾水动力特性难以简单概化为一维特征, 而在深度上具有分层异向流动特征. 支流上游来水主要以顺坡底部异重流形式流出库湾; 干支流水体密度差的变化及水位变动带来干支流水体处于频繁的交换状态, 水库干流水体主要以倒灌异重流形式进入库湾. 香溪河库湾异重流主要由水体之间的温差和浊度差引起, 其中温差是主要原因. 倒灌异重流潜入点深度主要决定于干支流水体密度差; 潜入点异重流厚度主要受水库干支流水体密度差及水位高低影响; 潜入库湾的距离主要受支流上游来流量、水位高低及水位日变幅影响.
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| 关 键 词： | 三峡水库 香溪河库湾 水动力 异重流 水温差 |
| 收稿时间： | 2009-04-01 |
| 修稿时间： | 2009-11-06 |
Hydrodynamic characteristics of Xiangxi Bay in Three Gorges Reservoir |
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| JI DaoBin,LIU DeFu,YANG ZhengJian,XIAO ShangBin, College of Civil & Hydroelectric Engineering of China Three Gorges University,Yichang ,China, School of Water Resources & Hydropower Engineering of Wuhan University,Wuhan.Hydrodynamic characteristics of Xiangxi Bay in Three Gorges Reservoir[J].Scientia Sinica Pysica,Mechanica & Astronomica,2010,40(1):101-112. |
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| Authors: | JI DaoBin LIU DeFu YANG ZhengJian XIAO ShangBin College of Civil & Hydroelectric Engineering of China Three Gorges University Yichang China School of Water Resources & Hydropower Engineering of Wuhan University Wuhan |
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| Institution: | JI DaoBin1,2,LIU DeFu1,YANG ZhengJian1,XIAO ShangBin1,3 1 College of Civil & Hydroelectric Engineering of China Three Gorges University,Yichang 443002,China,2 School of Water Resources & Hydropower Engineering of Wuhan University,Wuhan 430072,3 Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710075 |
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| Abstract: | Based on continuous monitoring in 2008,this paper analyzed the hydrodynamic processes of the Xiangxi Bay(XXB),a tributary of TGR.It showed that the hydrodynamics of the XXB could be generalized as a density-stratified flow,and could not be simply simulated by one-dimension model.The upstream water mainly flowed out of the bay in a process of downslope-bottom density current,meanwhile,the TGR mainstream water entered into the XXB in a reverse density current.The density current of the XXB was mainly caused b... |
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| Keywords: | Three Gorges Reservoir Xiangxi Bay hydrodynamics density current water temperature difference |
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