MINIMIZING OF SCOUR DOWNSTREAM HYDRAULIC STRUCTURES USING SEMI – CIRCULAR SILL

Document Type : Original Article

Authors

1 Ministry of Water Resources and Irrigation, Egypt

2 Civil Engineering Dept, Faculty of Engineering, Menofiya University.

3 Hydraulics Research Institute, National Water Research Center, Egypt

4 Civil Engineering Dept, Faculty of Eng., Menofiya University

Abstract

Local scour downstream control structures may cause sevier damage or complete failure to the control structures. Through this research, an experimental study was conducted using semi-circular sill. The suggested shape is easy to be used as an extra element to existing structures to minimize the scour downstream control structures. A hundred eighty nine experimental runs were carried out considering various heights and positions of sill with different flow conditions. A case of flat floor without sill was included as original case and to be compared with the cases using sill.  The influence of using the semi-circular sill on the scour hole dimensions was evaluated. Obtained results were analyzed and graphically presented.

Keywords

ERJ. Engineering Research Journal
Volume 35, Issue 2
April 2012
Pages 129-137

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