人民长江2016，Vol.47Issue(10)：72-75,95,5.DOI:10.16232/j.cnki.1001-4179.2016.10.0017
双机共尾水溢流式调压室过渡过程研究
Study on transition process of tailrace overflow surge chamber shared by two units
摘要
Abstract
Due to the topography , geological condition and operational pattern , some recent tailrace surge chamber adopts the layout of intersection behind the room , with branch pipes connected at the bottom of chamber .Under this new layout , some new hydraulic problems appear when the units are in stable operation .Taking the method of characteristics ( MOC) of one-dimen-sional rigid water hammer and elastic water hammer as the theoretical basis , we carried out numerical simulation to the tailrace o-verflow surge chamber shared by two units .The results show that the two impedance holes of the chamber have inward and out -ward flow under stable operation case , and the flow volume is related with flow in each branch pipe and head loss of each tailrace branches .The surge amplitude in the chamber and the overflow volume increase with the augment of impedance hole size and width of overflow weir .关键词
溢流量/特征线/阻抗孔/溢流式调压室Key words
overflow surge chamber/characteristic lines/impedance hole分类
建筑与水利引用本文复制引用
刘甲春,张健,俞晓东..双机共尾水溢流式调压室过渡过程研究[J].人民长江,2016,47(10):72-75,95,5.基金项目
国家自然科学基金项目项目 （）
