REVIEW ON LOCAL SCOUR DUE TO JETS

作     者：Arindam SARKAR,Subhasish DEY 

作者机构：Doctoral Research Fellow Department of Civil Engineering Indian Institute of Technology Kharagpur 721302 West Bengal India. Associate Professor Department of Civil Engineering Indian Institute of Technology Kharagpur 721302 West Bengal India. 

出 版 物：《International Journal of Sediment Research》 (国际泥沙研究(英文版))

年 卷 期：2004年第19卷第3期

页      面：210-238页

学科分类：08[工学] 081502[工学-水力学及河流动力学] 0815[工学-水利工程] 

主　　题：Scour Erosion Sediment transport Jets 

摘      要：The safety of an apron of the energy dissipator is threatened by the large-scale scour in the downstream of the apron due to the erosive action of a horizontal jet issuing from a sluice opening. Also, large-scale deposition of the scoured sediments due to an impinging jet in a plunging pool type energy dissipator affects the passage of flow adversely in the downstream channels. Owing to the significant practical importance, the problem of local scour due to jets has been studied by many investigators. In this paper, a comprehensive review of the up-to-date investigations on local scour due to horizontal and impinging jets is presented including all possible aspects, such as scouring process, parameters affecting scour, time variation of scour, velocity distribution on the apron and within the scour hole, development of boundary layer thickness, bed shear stress, scour estimation formulas and protection works.