二滩水库坝前及下泄水体水温分布现场观测与分析  

Field observation and analysis of water temperature distribution in front of dam and in outflow in Ertan Reservoir

作　　者：李冰冻[1] 李嘉[1] 李克锋[1] 邓云[1] 王玉蓉[1] 

机构地区：[1]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065

出　　处：《水利水电科技进展》2009年第4期21-23,共3页Advances in Science and Technology of Water Resources

基　　金：国家自然科学基金(50709023);雅砻江水电开发联合研究基金(50679094)

摘　　要：采用多功能水质参数仪YSI6600进行雅砻江干流二滩水库坝前水温全年观测,水温资料分析结果表明:二滩水库坝前水体常年处于温度分层状态,夏季表层与底层温差较大,冬季温差较小;电站进水口三维流动特性明显,导致进水口多取用表层温水,下泄水体水温比进水口处同高程水体水温高0.8℃左右。The YSI 6 600 water quality instrument was used to survey water temperature in front of the Ertan Reservoir dam on the Ya Long River. The data analysis results show that water temperature stratification existed in front of the dam all year. The difference between the water temperature in the surface layer and in the bottom layer is large in the summer and small in the winter. Three-dimensional flow occurs around the intake of the power station, allowing more warm water in the surface layer to flow into the intake, so the outflow water temperature is higher by 0.8℃ where the attitude is the same with fire intake.

关 键 词：二滩水库 水体温度 三维流动 下泄水温 

分 类 号：TV697.21[水利工程—水利水电工程]