巴基斯坦瓜达尔某电厂温排水数值模拟研究  

Seasonal current characteristics and near shore thermal diffusion simulation study on the North Coast of the Arabian Sea

作　　者：谭忠华 栾英妮 刘臻[1] 陈江南[3] 柴俊凯 TAN Zhonghua;LUAN Yingni;LIU Zhen;CHEN Jiangnan;CHAI Junkai(Ocean University of China,Qingdao 266100,China;Tianjin Research Institute for Water Transport Engineering,Key Laboratory of Engineering Sediment,Ministry of Transport,Tianjin 300456,China;Hohai University,Nanjing 210024,China;CCS Ocean Engineering Technology Center,Tianjin 300456,China)

机构地区：[1]中国海洋大学,青岛266100 [2]交通运输部天津水运工程科学研究所工程泥沙交通行业重点实验室,天津300456 [3]河海大学,南京210024 [4]中国船级社海洋工程技术中心,天津300456

出　　处：《水道港口》2024年第4期469-479,共11页Journal of Waterway and Harbor

基　　金：国家重点研发计划项目(2022YFE0113500);中央级公益性科研院所科研创新基金项目(TKS20220110)。

摘　　要：文章首先分析了北印度洋阿拉伯海的水文气象特征,重点分析了该海域的季风洋流特征,在此基础上,建立平面二维潮流水动力及热扩散数学模型,经率定验证后对巴基斯坦瓜达尔某燃煤电站不同取排水平面布置方案下的温排水扩散进行了数值模拟。巴基斯坦瓜达尔海域海流流向呈季节性长时间的单向流形态,为风海流,与北印度洋海区的季风洋流特征一致。研究结果表明:为了满足排放口100 m处温升不得超过3℃,可采用以下措施:采用多点分散式排水;增加排水口处的水深,使温水能够进行充分的垂向掺混作用;调整排水口的排水流量,按照水深浅、流量小或水深大、流量大的原则,充分利用每个排水口处的温水容纳体积。最后,总结了取排水口的相对位置优化原则,为取排水工程的设计提供了科学依据。In this paper,the hydrological and meteorological characteristics of the Arabian Sea in the North Indian Ocean were analyzed,particularly focusing on the monsoon ocean current patterns in the area.On this basis,a two-dimensional tidal flow dynamics and thermal diffusion mathematical model was established.After calibration verification,numerical simulations were conducted to examine the thermal drainage diffusion of a coal-fired power plant in Gwadar,Pakistan,under different water intake and drainage layout schemes.The current direction in the Gwadar Sea area of Pakistan shows a seasonal and long-term unidirectional flow pattern,which aligns with the monsoon current characteristics in the North Indian Ocean region.The research results indicate that in order to ensure that the temperature does not exceed 3℃at 100 m from the discharge outlet,the following measures can be taken:adopting a multi-point dispersed drainage;increasing the water depth at the drainage outlet to enable sufficient vertical mixing of warm water;adjusting the drainage flow rate of the drainage outlet by applying principles of shallow water depth,low flow rate,deep water depth,and high flow rate,and fully utilizing the volume of warm water at each drainage outlet.Finally,the principles for optimizing the relative position of water intake and drainage outlets were also summarized,providing a scientific basis for the design of water intake and drainage engineering.

关 键 词：季风洋流 取排水平面布置 排水温升 温排水扩散距离 数值模拟 

分 类 号：U656.3[交通运输工程—港口、海岸及近海工程] P753[交通运输工程—船舶与海洋工程]