Scour profiles at downstream of cascades

被引：16
作者：
Tuna, M. C. [1 ]
Emiroglu, M. E. [1 ]
机构：
[1] Firat Univ, Dept Civil Engn, TR-23119 Elazig, Turkey
来源：
SCIENTIA IRANICA | 2011年 / 18卷 / 03期
关键词：
Cascade; Stepped chute; Local scour; Nappe flow; Skimming flow; Transition flow; Flow regime; LOCAL SCOUR; SKIMMING FLOW; JET;
D O I：
10.1016/j.scient.2011.05.040
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A study was conducted to simplify and broaden the procedures for estimating scour dimensions at the downstream of cascades. There are many studies about energy dissipation, aeration and oxygen transfer in stepped-channel chutes and cascades. There is little attention paid to the scour downstream of the stepped chutes and their downstream scour hole geometry. Measurements were taken to obtain a scour hole profile in the equilibrium state of the scour, the value of the maximum depth of the scour, the location of the maximum scour depth and the length of the scour hole. It was also found that step geometry, stepped chute angle, downstream water level and sill types of a stilling basin are very important parameters for the geometry of the scour hole. (C) 2011 Sharif University of Technology. Production and hosting by Elsevier B.V. All rights reserved.
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页码：338 / 347
页数：10
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