摘要
采用立面二维水温模型研究了水库运行对下泄水温的影响,对单层进水口和2层叠梁门两种不同的水库取水方式,分别预测了对应的水库下泄水温的变化,据此探讨了锦屏一级水库不同取水方式对水库下泄水温的影响。结果表明:与单层进水口相比,2层叠梁门方案的下泄水温在春季偏高,冬季偏低,更接近于天然水温过程,对下游河道水温过程的改变较小,有利于维持下游河道原有的水生生态环境,是对下游河道水生生态环境改变较小的水库取水方案。
We adopt 2D lateral reservoir water temperature model to study the effects of reservoir operation on discharge water temperature and predict the temperature changes of water discharged respectively by two different diversion methods,namely,single intake and 2-layer stop log gate;and also discuss the effects of different diversion methods on the temperature of discharged water for Jinping I hydropower station.The results show that by the 2-layer scheme of stop log gate,the temperature of discharged water is higher in spring and lower in winter,which is close to the natural temperature process and has little changes on water temperature process.Therefore,the scheme of 2-layer stop log gate is beneficial to the maintenance of original aquatic biological environment for lower river.
出处
《人民长江》
北大核心
2010年第17期65-68,共4页
Yangtze River
关键词
水温模型
下泄水温
水库调度
锦屏水电站
water temperature model
temperature of discharged water
reservoir operation
Jinping I Hydropower Station
