摘要
竖缝式鱼道具有流态稳定、对上下游水位变动自适应性强、过鱼效率高等技术特点,是目前国内外比较流行的鱼道布置方式之一,得到了广泛的工程运用。已有研究表明,影响竖缝式鱼道水流结构的参数主要包括各级水池的长宽比、导板长度、导向角度、以及隔板墩头体型等。本文在已有研究基础上合理取用竖缝式鱼道的长宽比、导板长度、导向角度等参数,采用数值模拟方法,进一步研究了竖缝宽度对水池内水流结构的影响,并给出了其合理取值范围。
Vertical slot fishway,one of the most popular types in China and the world,is featured by stable flow pattern,self-adaptability to the water level changes in upstream and downstream,and favorable effect for fish species migration,and it has been widely adopted in practice.The literature shows that the flow structures of such a fishway depend on its pool aspect ratio,the length and deflecting angle of baffle plate and the shape of central baffle,etc.In this paper,the effects of slot width on the flow are further studied and the range of design parameters is given.
出处
《水力发电学报》
EI
CSCD
北大核心
2012年第1期151-156,共6页
Journal of Hydroelectric Engineering
关键词
环境水力学
竖缝式鱼道
数值模拟计算
竖缝宽度
水流结构
单位水体消能率
environment hydraulics
vertical slot fishway
numerical simulation
slot width
flow structure
volumetric power dissipation
