水力发电学报2012，Vol.31Issue(1)：129-134,6.
大型深水库分层取水水温模型试验研究
Water temperature model test for a multi-level power intake of large deep reservoir
柳海涛 1孙双科 1王晓松 1夏庆福 1姜涵1
作者信息
- 1. 中国水利水电科学研究院流域水循环模拟及调控国家重点实验室,北京100038
- 折叠
摘要
Abstract
Physical model tests of water temperature were conducted to analyze the multi-level power intake of the Jinping stage-I hydropower station.To simulate the density stratified flow in this intake,a conversion formula of temperature stratification between the model and prototype was derived by buoyancy similarity.In the test a method of layered heating of upstream inflow was used to maintain stable profiles of velocity and temperature at the boundaries,and the influence of different operating conditions on the temperature of discharged water were studied quantitatively.The results show that the intake operation causes changes in the fields of water temperature and velocity upstream to the intake,and that under the flow rate of 674m3/s,these changes are significant over a distance of as far as 600m.In the period of lower temperature discharge from March to May,use of two and half layers of stoplog can cause a temperature rise of 0.9℃ to 2.4℃.The resulting temperature is close to natural river temperature and it favors the habitat restoration in the river downstream.关键词
环境水力学/水温物理模型/浮力相似/叠梁门分层取水进水口/水温分布/下泄水温Key words
environmental hydraulics/physical model of water temperature/buoyancy similarity/multi-level intake with stoplog/water temperature distribution/discharged-water temperature分类
资源环境引用本文复制引用
柳海涛,孙双科,王晓松,夏庆福,姜涵..大型深水库分层取水水温模型试验研究[J].水力发电学报,2012,31(1):129-134,6.
