Experimental study of pressure flushing of non-cohesive sediment through slotted pipe bottom outlet
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 prop...
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Recursos Hídricos
2021-02-01
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| Series: | Revista Brasileira de Recursos Hídricos |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312021000100201&tlng=en |
| _version_ | 1819006193576706048 |
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| author | Felipe Azevedo Paulo Aline Saupe Abreu Maurício Dai Prá Luiz Augusto Magalhães Endres Rute Ferla Eder Daniel Teixeira |
| author_facet | Felipe Azevedo Paulo Aline Saupe Abreu Maurício Dai Prá Luiz Augusto Magalhães Endres Rute Ferla Eder Daniel Teixeira |
| author_sort | Felipe Azevedo Paulo |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-21T00:04:48Z |
| format | Article |
| id | doaj.art-2b54d5e79e9a4f2590031f05aa4f117a |
| institution | Directory Open Access Journal |
| issn | 2318-0331 |
| language | English |
| last_indexed | 2024-12-21T00:04:48Z |
| publishDate | 2021-02-01 |
| publisher | Associação Brasileira de Recursos Hídricos |
| record_format | Article |
| series | Revista Brasileira de Recursos Hídricos |
| spelling | doaj.art-2b54d5e79e9a4f2590031f05aa4f117a2022-12-21T19:22:31ZengAssociação Brasileira de Recursos HídricosRevista Brasileira de Recursos Hídricos2318-03312021-02-012610.1590/2318-0331.262120200076Experimental study of pressure flushing of non-cohesive sediment through slotted pipe bottom outletFelipe Azevedo Paulohttps://orcid.org/0000-0002-3099-0581Aline Saupe Abreuhttps://orcid.org/0000-0003-1472-6518Maurício Dai Práhttps://orcid.org/0000-0002-1858-1531Luiz Augusto Magalhães Endreshttps://orcid.org/0000-0003-4228-3187Rute Ferlahttps://orcid.org/0000-0002-7056-3306Eder Daniel Teixeirahttps://orcid.org/0000-0001-7595-486XABSTRACT 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312021000100201&tlng=enReservoir sedimentationBottom outletPressure flushingSedimentWater intake |
| spellingShingle | Felipe Azevedo Paulo Aline Saupe Abreu Maurício Dai Prá Luiz Augusto Magalhães Endres Rute Ferla Eder Daniel Teixeira Experimental study of pressure flushing of non-cohesive sediment through slotted pipe bottom outlet Revista Brasileira de Recursos Hídricos Reservoir sedimentation Bottom outlet Pressure flushing Sediment Water intake |
| title | Experimental study of pressure flushing of non-cohesive sediment through slotted pipe bottom outlet |
| title_full | Experimental study of pressure flushing of non-cohesive sediment through slotted pipe bottom outlet |
| title_fullStr | Experimental study of pressure flushing of non-cohesive sediment through slotted pipe bottom outlet |
| title_full_unstemmed | Experimental study of pressure flushing of non-cohesive sediment through slotted pipe bottom outlet |
| title_short | Experimental study of pressure flushing of non-cohesive sediment through slotted pipe bottom outlet |
| title_sort | experimental study of pressure flushing of non cohesive sediment through slotted pipe bottom outlet |
| topic | Reservoir sedimentation Bottom outlet Pressure flushing Sediment Water intake |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2318-03312021000100201&tlng=en |
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