长江科学院院报2018，Vol.35Issue(1)：86-90,5.DOI:10.11988/ckyyb.20160972
窄缝消能工冲击波及水翅特性研究
Characteristics of Shock Waves and Water Wing in Slit-type Energy Dissipators
摘要
Abstract
Slit-type energy dissipator is widely used in hydraulic projects of high water head,large discharge,and narrow river valley due to its simple structure and high efficiency.The water wing caused by shock waves in the contracted section of slit-type energy dissipator may bring about harmful effects,which,however,has not received sufficient attention.In this article,the hydraulic characteristics of slit-type energy dissipator are investigated by means of physical model and theoretical analysis to reveal the internal relation between shock waves and water wings.A correction coefficient is introduced for the application of Ippen's theory to slit-type energy dissipator.The expression of the coefficient is obtained,and simplified formulas for shock wave angle and water wing scope are theoretically derived,which was verified accurate by experimental data,with the relative error within 5％.关键词
窄缝消能工/水流冲击波/水翅/运动特性/模型试验Key words
slit-type energy dissipator/shock wave of flow/water wing/motion characteristics/hydraulic modelling分类
建筑与水利引用本文复制引用
胡晗,杨伟,黄国兵,侯冬梅,杜兰..窄缝消能工冲击波及水翅特性研究[J].长江科学院院报,2018,35(1):86-90,5.基金项目
国家自然科学基金项目(51709014) （51709014）
国家重点研发计划项目(2016YFC0401904) （2016YFC0401904）
中央级公益性科研院所基本科研业务费专项(CKSF2017055/SL,CKSF2017011/SL) （CKSF2017055/SL,CKSF2017011/SL）
