Experimental Characterization of the Hydraulic Jump Profile and Velocity Distribution in a Stilling Basin Physical Model
The study of the hydraulic jump developed in stilling basins is complex to a high degree due to the intense velocity and pressure fluctuations and the significant air entrainment. It is this complexity, bound to the practical interest in stilling basins for energy dissipation purposes, which brings...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-06-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/12/6/1758 |
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| author | Juan Francisco Macián-Pérez Francisco José Vallés-Morán Santiago Sánchez-Gómez Marco De-Rossi-Estrada Rafael García-Bartual |
| author_facet | Juan Francisco Macián-Pérez Francisco José Vallés-Morán Santiago Sánchez-Gómez Marco De-Rossi-Estrada Rafael García-Bartual |
| author_sort | Juan Francisco Macián-Pérez |
| collection | DOAJ |
| description | The study of the hydraulic jump developed in stilling basins is complex to a high degree due to the intense velocity and pressure fluctuations and the significant air entrainment. It is this complexity, bound to the practical interest in stilling basins for energy dissipation purposes, which brings the importance of physical modeling into the spotlight. However, despite the importance of stilling basins in engineering, bibliographic studies have traditionally focused on the classical hydraulic jump. Therefore, the objective of this research was to study the characteristics of the hydraulic jump in a typified USBR II stilling basin, through a physical model. The free surface profile and the velocity distribution of the hydraulic jump developed within this structure were analyzed in the model. To this end, an experimental campaign was carried out, assessing the performance of both, innovative techniques such as the time-of-flight camera and traditional instrumentation like the Pitot tube. The results showed a satisfactory representation of the free surface profile and the velocity distribution, despite some discussed limitations. Furthermore, the instrumentation employed revealed the important influence of the energy dissipation devices on the flow properties. In particular, relevant differences were found for the hydraulic jump shape and the maximum velocity positions within the measured vertical profiles, when compared to classical hydraulic jumps. |
| first_indexed | 2024-03-10T19:00:15Z |
| format | Article |
| id | doaj.art-6f117c7d87af48548cdbe03d3ab9f878 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T19:00:15Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-6f117c7d87af48548cdbe03d3ab9f8782023-11-20T04:28:34ZengMDPI AGWater2073-44412020-06-01126175810.3390/w12061758Experimental Characterization of the Hydraulic Jump Profile and Velocity Distribution in a Stilling Basin Physical ModelJuan Francisco Macián-Pérez0Francisco José Vallés-Morán1Santiago Sánchez-Gómez2Marco De-Rossi-Estrada3Rafael García-Bartual4Research Institute of Water and Environmental Engineering, Universitat Politècnica de València, Camí de Vera, s/n, 46022 València, SpainResearch Institute of Water and Environmental Engineering, Universitat Politècnica de València, Camí de Vera, s/n, 46022 València, SpainInstituto Universitario de Restauración del Patrimonio, Universitat Politècnica de València, Camí de Vera, s/n, 46022 València, SpainInstituto Universitario de Restauración del Patrimonio, Universitat Politècnica de València, Camí de Vera, s/n, 46022 València, SpainResearch Institute of Water and Environmental Engineering, Universitat Politècnica de València, Camí de Vera, s/n, 46022 València, SpainThe study of the hydraulic jump developed in stilling basins is complex to a high degree due to the intense velocity and pressure fluctuations and the significant air entrainment. It is this complexity, bound to the practical interest in stilling basins for energy dissipation purposes, which brings the importance of physical modeling into the spotlight. However, despite the importance of stilling basins in engineering, bibliographic studies have traditionally focused on the classical hydraulic jump. Therefore, the objective of this research was to study the characteristics of the hydraulic jump in a typified USBR II stilling basin, through a physical model. The free surface profile and the velocity distribution of the hydraulic jump developed within this structure were analyzed in the model. To this end, an experimental campaign was carried out, assessing the performance of both, innovative techniques such as the time-of-flight camera and traditional instrumentation like the Pitot tube. The results showed a satisfactory representation of the free surface profile and the velocity distribution, despite some discussed limitations. Furthermore, the instrumentation employed revealed the important influence of the energy dissipation devices on the flow properties. In particular, relevant differences were found for the hydraulic jump shape and the maximum velocity positions within the measured vertical profiles, when compared to classical hydraulic jumps.https://www.mdpi.com/2073-4441/12/6/1758physical modelhydraulic jumpUSBR II stilling basinfree surface profilevelocity profile |
| spellingShingle | Juan Francisco Macián-Pérez Francisco José Vallés-Morán Santiago Sánchez-Gómez Marco De-Rossi-Estrada Rafael García-Bartual Experimental Characterization of the Hydraulic Jump Profile and Velocity Distribution in a Stilling Basin Physical Model Water physical model hydraulic jump USBR II stilling basin free surface profile velocity profile |
| title | Experimental Characterization of the Hydraulic Jump Profile and Velocity Distribution in a Stilling Basin Physical Model |
| title_full | Experimental Characterization of the Hydraulic Jump Profile and Velocity Distribution in a Stilling Basin Physical Model |
| title_fullStr | Experimental Characterization of the Hydraulic Jump Profile and Velocity Distribution in a Stilling Basin Physical Model |
| title_full_unstemmed | Experimental Characterization of the Hydraulic Jump Profile and Velocity Distribution in a Stilling Basin Physical Model |
| title_short | Experimental Characterization of the Hydraulic Jump Profile and Velocity Distribution in a Stilling Basin Physical Model |
| title_sort | experimental characterization of the hydraulic jump profile and velocity distribution in a stilling basin physical model |
| topic | physical model hydraulic jump USBR II stilling basin free surface profile velocity profile |
| url | https://www.mdpi.com/2073-4441/12/6/1758 |
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