文档介绍：上海交通大学
硕士学位论文
青草沙水库库内流动特征
姓名:陈青毅
申请学位级别:硕士
专业:港口、海岸及近海工程
指导教师:吴卫
20090201
上海交通大学硕士学位论文
青草沙水库库内流动特征

摘要

上海青草沙水源地建设是上海社会与经济发展过程中为解决上
海市用水紧张的一个战略性工程。在水库建成运作之后,如何实施有
效的引排水方案,使水库良好地运作,发挥其最大功能,是我们所关
心的问题。
本文应用 DELFT-3D 软件建立数学模型,首先用风吹流解析解
及实测水文资料对所建模型进行了验证。然后研究青草沙库区设计方
案的在两种典型风况下的风吹流流态,认识该水库的基本流体运动特
性。计算比较不同风况以及引排水条件下水库的流态。在只开 A 闸
进水及 B 闸随水位启闭两种工况下,计算水库中水质的变化过程,
根据所定义的“水体交换率”分析换水效率,并得出水体中污染物质的
输移过程,以便在引排水工况下安排有效的换水过程,并提出合理的
引水与排水方案。对水动力过程与水质过程的数值模拟研究将为青草
沙水库的合理有效运营提供科学依据。

关键词:青草沙数值模拟风吹流水交换水质
I
上海交通大学硕士学位论文
The Current Characteristics in Qingcaosha Reservoir

Abstract

Qingcaosha reservoir is a strategic project to solve the fresh water
lack during the development of society and economic of Shanghai. After
finishing the construction of the reservoir, what we care most is how to
carry out an effective scheme to pump in and out water in order to make
sure the reservoir operate normally and be taken greatest advantage of.
The numerical model is built with mercial software
Delft-3D, which is then validated with the analysis solution and the
measured data. Typical wind-induced flow pattern is studied so as to
recognize the basic flowing characteristics in the reservoir. The flow
pattern is also calculated in the conditions of different wind modes and
schemes of drawing and draining off water. The process that how water
quality changes under these suppositional schemes is calculated.
According to the defined “rate of water exchange”, the efficiency of
water exchange is analyzed in order to establish an efficient and sound
scheme. The research about the hydraulic process and the water quality
changing process will provide a scientific foundation to set the discharge
at the strobes and the grade of purifying the water.
II
上海交通大学硕士学位论文
The content of this paper includes building and validating the
numerical model, and studying the current characteristics in the reservoir
under differe