泄洪洞龙抬头段设置孔板的试验研究  

The Study of Experiments on Installing the Orifice Plate in the Longtaitou Section of Flood-cavity

作　　者：罗立群[1] 赵慧琴[1] 龚西成[1] 

机构地区：[1]黄河水利科学研究院,河南郑州450003

出　　处：《黄河水利职业技术学院学报》2003年第1期4-6,共3页Journal of Yellow River Conservancy Technical Institute

摘　　要：通过在龙抬头上两个平直段部位 (上弯段与斜向直线段 )分别设置孔板及偏心孔板 ,进行流态、压力、流速等项观测 ,并对消能系数和水流空化数做分析计算 。After the separate installation of orifice plate and partial orifice plate on the two flat and straight part in Longtaitou, the writers made observations on flowform, pressure, flow rate, etc. and then analyzed and calculated the energy_dissapation coefficient and water cavitation number. Thus, the tentative conclusion, which the orifice plate isn't suited for the Longtaitou, is proved.

关 键 词：龙抬头 消能孔板 泄洪洞 试验研究 孔板设置 工作闸门 流态 压力分析 消能系数 

分 类 号：TV135.2[水利工程—水力学及河流动力学]