MINIMIZING OF SCOUR DOWNSTREAM HYDRAULIC STRUCTURES USING SEMI – CIRCULAR SILL | ||||
| ERJ. Engineering Research Journal | ||||
| Article 6, Volume 35, Issue 2, April 2012, Page 129-137 PDF (184.01 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/erjm.2012.67127 | ||||
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| Authors | ||||
| Hitham Abdel Samad1; Y. Esam Helal2; S.A Ibrahim3; M.F Sobeih4 | ||||
| 1Ministry of Water Resources and Irrigation, Egypt | ||||
| 2Civil Engineering Dept, Faculty of Engineering, Menofiya University. | ||||
| 3Hydraulics Research Institute, National Water Research Center, Egypt | ||||
| 4Civil 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 | ||||
| Hydraulic structures; Hydraulic jump; Scour holes; semi- circular sill; Physical model | ||||
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