Physical modeling of ski-jump spillway to evaluate dynamic pressure
Energy dissipation; Ski jumps; Dynamic pressures; Initial thickness; Physical model; Pressure fluctuation; Reduced dynamics; Ski-jump bucket; Surface disturbances; Water jets; Dynamics; disturbance; energy dissipation; laboratory method; modeling; physical method; pressure
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2023
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my.uniten.dspace-245382023-05-29T15:24:20Z Physical modeling of ski-jump spillway to evaluate dynamic pressure Moghadam M.K. Amini A. Malek M.A. Mohammad T. Hoseini H. 37120795400 49361121300 55636320055 55393535500 57210588555 Energy dissipation; Ski jumps; Dynamic pressures; Initial thickness; Physical model; Pressure fluctuation; Reduced dynamics; Ski-jump bucket; Surface disturbances; Water jets; Dynamics; disturbance; energy dissipation; laboratory method; modeling; physical method; pressure The effects of changes in the angle of pool impact plate, plunging depth, and discharge upon the dynamic pressure caused by ski-jump buckets were investigated in the laboratory. Four impact plate angles and four plunging depths were used. Discharges of 67, 86, 161, and 184 L/s were chosen. For any discharge, plunging depth and impact plate angle were regulated, and dynamic pressures were measured by a transducer. The results showed that with the increase in the ratio of drop length of the jet to its break-up length (H/Lb), and with an increase in the impact plate angle, the mean dynamic pressure coefficient decreased. An inspection of the plunging depth (Y) ratio to the initial thickness of the jet (Bj) revealed that when Y/Bj > 3, the plunging depth of the downstream pool reduced dynamic pressure. At the angle of 60�, the dynamic pressure coefficient due to increasing in plunging depth varied from 34% to 95%. � 2019 by the authors. Final 2023-05-29T07:24:20Z 2023-05-29T07:24:20Z 2019 Article 10.3390/w11081687 2-s2.0-85070951689 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070951689&doi=10.3390%2fw11081687&partnerID=40&md5=0cae4a5a97f171832f2c4ef05025a38f https://irepository.uniten.edu.my/handle/123456789/24538 11 8 1687 All Open Access, Gold MDPI AG Scopus |
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Energy dissipation; Ski jumps; Dynamic pressures; Initial thickness; Physical model; Pressure fluctuation; Reduced dynamics; Ski-jump bucket; Surface disturbances; Water jets; Dynamics; disturbance; energy dissipation; laboratory method; modeling; physical method; pressure |
| author2 |
37120795400 |
| author_facet |
37120795400 Moghadam M.K. Amini A. Malek M.A. Mohammad T. Hoseini H. |
| format |
Article |
| author |
Moghadam M.K. Amini A. Malek M.A. Mohammad T. Hoseini H. |
| spellingShingle |
Moghadam M.K. Amini A. Malek M.A. Mohammad T. Hoseini H. Physical modeling of ski-jump spillway to evaluate dynamic pressure |
| author_sort |
Moghadam M.K. |
| title |
Physical modeling of ski-jump spillway to evaluate dynamic pressure |
| title_short |
Physical modeling of ski-jump spillway to evaluate dynamic pressure |
| title_full |
Physical modeling of ski-jump spillway to evaluate dynamic pressure |
| title_fullStr |
Physical modeling of ski-jump spillway to evaluate dynamic pressure |
| title_full_unstemmed |
Physical modeling of ski-jump spillway to evaluate dynamic pressure |
| title_sort |
physical modeling of ski-jump spillway to evaluate dynamic pressure |
| publisher |
MDPI AG |
| publishDate |
2023 |
| _version_ |
1806427478688792576 |