International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

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Hydraulic Model Study Of Ski-Jump Bucket Energy Dissipator With And Without Deflector

Author(s) Dr. Pankaj R Modak, Dr. Vivek S Chavhan, Dr. Sanjay D Nagrale
Country India
Abstract On spillway, ski-jump bucket energy dissipator is provided when take-off velocity exceeds 20 m/s. The aim of present study was to investigate characteristics of trajectory and energy dissipation in ski-jump bucket energy dissipator with and without deflectors. Deflector is a small element, sometimes provided to deflect the trajectory from the ski-jump bucket toward the main river when the spillway is located on the flank. For laboratory study a 1:100 scale model of ski-jump bucket energy dissipator was designed and fabricated. Triangular shaped deflectors were designed and fabricated with same scale. For experimentation deflectors were fixed along the sides of the ski-jump bucket. For present study, experiments were conducted in a laboratory flume of size 6.00m length, 300mm width and 300mm depth. The maximum discharge capacity of the flume was 10 lit/s. In the present study characteristics of trajectory and energy dissipation with deflectors on ski-jump bucket were measured and results were compared with conventional ski-jump bucket energy dissipator without deflector. This paper intends to provide a new approach for improving energy dissipation by using deflectors for ski-jump bucket energy dissipator. The result indicates that the deflectors have significant effect on characteristics of trajectory and energy dissipation. The result shown that the uses of deflectors on ski-jump bucket improve energy dissipation.
Keywords Ski-jump bucket, Deflector, Trajectory, Lip, Plunge pool
Field Engineering
Published In Volume 7, Issue 5, September-October 2025
Published On 2025-10-31
DOI https://doi.org/10.36948/ijfmr.2025.v07i05.59197
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E-ISSN 2582-2160
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