摘要
潜流带是地表水—地下水生态系统中的重要部分,它对供水滞洪、水污染控制、河流生态保护均具有巨大作用。在潜流带的研究中,热示踪技术可以很好地应用于渗流速度、有效热扩散系数等参数估计,揭示潜流带中的物质与能量交换的过程。热示踪有着装置布置简单、环境效益友好、时间跨度优越等优点。传热机制作为热示踪基础理论中的重要部分,在以往国内的研究中缺乏深入的阐述。本文以传热机制为切入点,介绍不同河道中热传递方式的差异,简述传热方程及历来研究中解析解、数值解发展,最后探讨该技术面临的挑战及未来可能的发展方向。
The hyporheic zone plays a crucial role in surface water and groundwater ecosystems,exerting significant influence on water supply,flood control,water pollution mitigation,and river ecological preservation.The application of heat tracer technology proves to be highly effective in investigating the hyporheic zone,allowing for the estimation of key parameters such as seepage velocity and effective molecular diffusion coefficient.Moreover,it facilitates the understanding of material and energy exchange processes within the hyporheic zone.Heat tracer technology boasts advantages such as straightforward device arrangement,environmental friendliness,and prolonged observation periods.One critical aspect lacking in previous Chinese studies is the in-depth exploration of heat transfer mechanisms-the cornerstone of heat tracer theory.In this paper,the heat transfer mechanisms,highlighting variations in heat transfer modes across different rivers were discussed.A succinct overview of the heat transfer equation,detailing the evolution of analytical and numerical solutions in prior research was presented.Finally,the challenges and outline future directions for the development of this technology were addressed.
作者
许倍源
武丽文
张明珠
俞烜
XU Beiyuan;WU Liwen;ZHANG Mingzhu;YU Xuan(School of Civil Engineering,Sun Yat-Sen University,Zhuhai 519082,China;The Department of Health and Environmental Sciences,Xi’an Jiaotong-Liverpool University,Suzhou 215123,China;Guangzhou Hydraulic Research Institute,Guangzhou 510220,China;State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China)
出处
《水文》
CSCD
北大核心
2024年第2期19-25,65,共8页
Journal of China Hydrology
基金
国家重点研发计划项目(2021YFC3001000)。
关键词
潜流带
热示踪
传热机制
传热方程
hyporheic zone
heat tracer
heat transfer mechanisms
heat transfer equation
