水利水电科技进展2011，Vol.31Issue(1)：45-49,5.DOI:10.3880/j.issn.1006-7647.2011.01.011
响水涧抽水蓄能电站引、尾水道上弯段弯道效应分析
Bend effect of upper bend sections of headrace and tailrace conduits of Xiangshuijian Pumped Storage Power Station
张兰丁1
作者信息
- 1. 南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏,南京,210029
- 折叠
摘要
Abstract
Hydraulic characteristics of the upper bend sections of headrace and tailrace conduits of Xiangshuijian Punped Storage Power Station were studied. The bend effect was revealed: ( 1 ) the mean flow velocities of vertical lines at both sides of gate shafts were nearly equal to or larger than those of vertical line in the center of gate shafts; (2) the velocity distribution of vertical lines in the center was slightly distorted; (3) the piezometric head was not a constant along the circumference of cross section at the bend sections. The model test results indicate that the influences of the bend effect on the velocity distribution can be avoided when the distance between the bend section and the gate shaft is about five times the conduit diameter, and those of the bend effect on the pressure distribution can be avoided when the distance is about seven times the diameter.关键词
输水管道/弯道效应/流速分布/测压管水头/水工模型试验/响水涧抽水蓄能电站分类
建筑与水利引用本文复制引用
张兰丁..响水涧抽水蓄能电站引、尾水道上弯段弯道效应分析[J].水利水电科技进展,2011,31(1):45-49,5.
