| Autor: |
Felipe Azevedo Paulo, Aline Saupe Abreu, Maurício Dai Prá, Luiz Augusto Magalhães Endres, Rute Ferla, Eder Daniel Teixeira |
| Jazyk: |
English<br />Portuguese |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Revista Brasileira de Recursos Hídricos, Vol 26 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2318-0331 |
| DOI: |
10.1590/2318-0331.262120200076 |
| Popis: |
ABSTRACT Among several techniques for prevention and mitigation of reservoir sedimentation, bottom outlets arise as a means of removing sediment deposited close to the dam. Given the reduced sediment removal provided by traditional bottom outlets under pressure flushing conditions, this article proposes a new type of structure that aims to increase sediment removal in the direction parallel to the dam axis. An experimental installation was employed to evaluate its operation as a function of the variation of its diameter and flow and sediment characteristics. Through analysis of the bathymetry generated by the structure, a dimensionless relation for predicting the scour pit length was obtained, presenting good fitness to the experimental data. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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