Reduction of stilling basin length with tall end sill |
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| Authors: | Manoochehr FATHI-MOGHADAM Sadegh HAGHIGHIPOUR Babak LASHKAR-ARA Peyman AGHTOUMAN[Author vitae] |
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| Affiliation: | aDepartment of Hydraulic Structures, Shahid Chamran University, Ahvaz, Iran;bDepartment of Hydraulic Structures, Shahid Chamran University, Ahvaz, Iran;cDepartment of Civil Engineering, Jundishapur University of Technology, Dezful, Iran;dSoil Conservation and Watershed Management Research Institute, Tehran, Iran |
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| Abstract: | Experiments were conducted to characterize forced hydraulic jumps in stilling basins for enforced cases due to tail water level or dam site arrangement and construction. The case with a single tall sill was simulated in a horizontal flume downstream of a sluice gate. Results of experiments are compared with the classical hydraulic jump, and significant effect of tall sill on dissipation of energy in shorter distance was confirmed. Furthermore, the generated jumps were classified based on the ratio of sill height to basin length, and a simple design criterion was proposed to estimate the basin length for a desired jump and particular inflow. |
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| Keywords: | forced hydraulic jump energy dissipater sill stilling basin length |
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