Formation of air-entraining vortices at horizontal intakes without approach flow induced circulation  

作　　者：Mustafa GOGUS Mete KOKEN Ali BAYKARA 

机构地区：[1]Civil Engineering Department, Middle East Technical University

出　　处：《Journal of Hydrodynamics》2016年第1期102-113,共12页水动力学研究与进展B辑（英文版）

基　　金：supported by the TUBITAK (The Scientific and Technological Research Council of Turkey) (Grant No. 110M676)

摘　　要：The aim of this experimental study is to investigate the effects of hydraulic parameters on the formation of air-entraining vortices at horizontal intake structures without approach flow induced circulation. Six intake pipes of different diameters were tested in the study. The intake pipe to be tested was horizontally mounted to the front side of a large reservoir and then for a wide range of discharges experiments were conducted and critical submergences were detected with adjustable approach channel sidewalls. Empirical equations were derived for the dimensionless critical submergence as a function of the relevant dimensionless parameters. Available data is also checked for the possible scale effect. Then, these obtained equations were compared with the similar ones in the literature which showed a quite good agreement.The aim of this experimental study is to investigate the effects of hydraulic parameters on the formation of air-entraining vortices at horizontal intake structures without approach flow induced circulation. Six intake pipes of different diameters were tested in the study. The intake pipe to be tested was horizontally mounted to the front side of a large reservoir and then for a wide range of discharges experiments were conducted and critical submergences were detected with adjustable approach channel sidewalls. Empirical equations were derived for the dimensionless critical submergence as a function of the relevant dimensionless parameters. Available data is also checked for the possible scale effect. Then, these obtained equations were compared with the similar ones in the literature which showed a quite good agreement.

关 键 词：air-entraining vortex horizontal intakes model scale effect sidewall clearance vortex 

分 类 号：O35[理学—流体力学]