低Froude数新型消能尾坎数值模拟研究  

Numerical Simulation of a New Type of Energy Dissipation Tail for Low Froude Numbers

作　　者：刘洪滨 王亚洲 王均星[2] 张霄 LIU Hong-bin;WANG Ya-zhou;WANG Jun-xing;ZHANG Xiao(Xinjiang Institute of Water Resources and Hydropower Research,Xinjiang 830049;State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China)

机构地区：[1]新疆水利水电科学研究院,乌鲁木齐830049 [2]武汉大学水资源与水电工程科学国家重点实验室,武汉430072

出　　处：《中国农村水利水电》2020年第8期221-226,230,共7页China Rural Water and Hydropower

摘　　要：低佛氏数水流在下挖式消力池的消能不充分,一般采用在消力池尾坎处增设消力坎形成综合式消力池,从而增加消力池内的消能率。针对新集水利枢纽工程综合式消力池的消力坎体型设计对消力池消能率的影响,基于Flow3D对不同形式的消力坎进行了数值计算,给出了Fr<2.0时的综合式消力池的体型设计形式,提出一种新型消能尾坎,这种齿形消力坎对增加消力池消能率具有重要作用。The low Froude number flow has insufficient energy dissipation in the down-dug type stilling pool.Generally,the addition of a stilling sill at the tail sill of the stilling pool to form a comprehensive stilling pool,thereby increasing the energy dissipation rate in the stilling pool.Aiming at the influence of the shape of the stilling sill of the integrated stilling pool on the energy dissipation rate of the stilling pool of the new water conservancy project,numerical calculations of different forms of stilling sills are performed based on Flow3 D.The body shape design type of the stilling pool is a new type of energy dissipation tail sill.This toothed shape sill has an important effect on increasing the energy dissipation rate of the still pool.

关 键 词：低佛氏数 消能 新集水利枢纽 综合式消力池 消力坎 

分 类 号：TV131[水利工程—水力学及河流动力学]