温排水在河口潟湖海岸中输运的三维模拟与分析  

Three-dimensional simulation and analysis of thermal discharge transport in a coast with lagoon and estuary

作　　者：顾杰 韩雪健 匡翠萍[2] 张金勇 左丽明[3] 朱琴[3] GU Jie;HAN Xue-jian;KUANG Cui-ping;ZHANG Jin-yong;ZUO Li-ming;ZHU Qin(College of Marine Ecology and Environment,Shanghai Ocean University,Shanghai 201306,China;College of Civil Engineering,Tongji University,Shanghai 200092,China;Hydrogeology and Engineering Geology Survey Institute,Geology and Mineral Exploration Bureau of Hebei Province,Shijiazhuang 050021,China)

机构地区：[1]上海海洋大学海洋生态与环境学院,上海201306 [2]同济大学土木工程学院,上海200092 [3]河北省地矿局水文工程地质勘查院,河北石家庄050021

出　　处：《水动力学研究与进展（A辑）》2020年第2期201-212,共12页Chinese Journal of Hydrodynamics

基　　金：海洋公益性行业科研专项(201305003);河北省海洋局科研项目(20171541)。

摘　　要：大唐国际王滩电厂位于渤海湾西侧,排水口附近有河口、潟湖以及港口等地貌和工程,温排水在此复杂水域的输运特征具有典型的研究价值。该文以此电厂温排水为研究对象,采用MIKE 3软件和双重嵌套网格技术建立三维水动力及温度耦合模型,利用2017年5月和8月实测潮流及温度数据对模型进行合理性验证。模拟和分析了不同潮流动力、风作用以及温排水条件下温升效应特征。结果表明:温排水条件对温升起控制作用,排水量和排水温度是影响温升分布的二个关键要素;风动力作用对于温升影响较大,风生流对温升平面分布产生重要影响;由于该海域为弱潮区,不同潮流作用造成的温升差异较小。Datang International Wangtan Power Plant is located in the west of Bohai Bay,where an estuary,a lagoon and a port are located near the thermal outlet,which makes it typically meaningful for studying the transport characteristics of the thermal discharge in such a complex water body.In this study,the thermal discharge of the power plant is taken as the research object,and then a three-dimensional hydrodynamic and temperature model employing double-nested mesh technology is established by using MIKE 3 software.The model is well verified by the tide current and water temperature data measured in May and August of 2017.The verified model is adopted to analyze the characteristics of temperature rise effect under different tidal currents,wind and thermal discharge conditions.The main results indicate that:thermal discharge conditions in terms of discharge volume and temperature control the temperature rise and they significantly affect temperature rise distribution on the horizontal.Wind plays a role in the temperature rise,wind-driven current has a significant influence on the horizontal distribution of temperature rise.The difference of temperature rise caused by tidal flow is small due to the weak tide in this coast.

关 键 词：三维模型 温排水 河口 潟湖 温升 

分 类 号：TV137[水利工程—水力学及河流动力学]