Experimental study of hydraulic losses in linear and nonlinear weirs: A comparative analysis
| Autor: | Reza Ghasemi Ghasemvand, Mohammad Heidarnejad, Alireza Masjedi, Amin Bordbar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2024 |
| Předmět: | |
| Zdroj: | Water Science, Vol 38, Iss 1, Pp 378-390 (2024) |
| Druh dokumentu: | article |
| ISSN: | 23570008 2357-0008 |
| DOI: | 10.1080/23570008.2024.2373954 |
| Popis: | With increased length of the crest in a certain width range, the labyrinth weirs increase the discharge capacity. In this study, a laboratory flume was used with a length of 8 m and a width and height of 0.6 m, in which the hydraulic loss of linear/non-linear, labyrinth, triangular, and trapezoidal weirs were investigated. Dimensional analysis using the Buckingham methodology showed that the discharge coefficient (Cd) is a function of parameters such as hydraulic head ratio (Ht/P), weir shape factor (Sf), and hydraulic loss ratio (Hf/P). The results showed that the ATRL weir has a lower discharge coefficient than the ALR by 44% and ATPL a lower discharge coefficient than ALR by 50%. The ATRL weir has a higher hydraulic loss than ALR by 2300% and a higher hydraulic loss than ATPL by 2000%. The TRL weir has a higher hydraulic loss than LR by 4900% and a higher hydraulic loss than TPL by 5700%. The TRL weir has a lower discharge coefficient than LR by 41% and TPL by 43%. The best correlation with the Cubic statistical model was obtained in the TPL weir in terms of discharge coefficient and in the ALR weir in terms of hydraulic loss. |
| Databáze: | Directory of Open Access Journals |
| Externí odkaz: |
|