Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD)
To make an efficient delivery of water to irrigation users, it is necessary to have accurate dispositive to measure flow rates. These dispositive include triangular and rectangular weirs for measured flow rates ranges between 30 and 200 l s-1. However, the variation of flows in the execution of an a...
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| Format: | Article |
| Language: | English |
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Instituto Mexicano de Tecnología del Agua
2021-07-01
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| Series: | Tecnología y ciencias del agua |
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| Online Access: | https://revistatyca.org.mx/index.php/tyca/article/view/2429 |
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| author | Erick Dante Mattos-Villarroel Jorge Flores-Velazquez Waldo Ojeda-Bustamante Mauro Iñiguez-Covarrubias Carlos Díaz-Delgado Humberto Salinas-Tapia |
| author_facet | Erick Dante Mattos-Villarroel Jorge Flores-Velazquez Waldo Ojeda-Bustamante Mauro Iñiguez-Covarrubias Carlos Díaz-Delgado Humberto Salinas-Tapia |
| author_sort | Erick Dante Mattos-Villarroel |
| collection | DOAJ |
| description | To make an efficient delivery of water to irrigation users, it is necessary to have accurate dispositive to measure flow rates. These dispositive include triangular and rectangular weirs for measured flow rates ranges between 30 and 200 l s-1. However, the variation of flows in the execution of an agricultural year can be a factor of error in the volumetric delivery and a possible alternative solution is the use of a compound weir. The aim of this study was to analyze the hydraulic behavior of a triangular-rectangular weir, as a function of geometric and flow parameters and get a new global expression of the discharge coefficient. ANSYS Fluent was used to simulate the flow rates fluid, to discretized the dynamics of flow under specific conditions. The evaluation of the model with ANSYS Fluent, and its analysis, was carried out based on experimental data and the corresponding analytical solution. The Computational Fluid Dynamics (CFD) simulations showed statistical agreement with the laboratory data, finding a maximum error of 0.74 %. An expression of the global discharge coefficient was obtained and it was possible to analytically estimate the expenditure with a maximum error of 7.8 % with respect to experimental data. Thanks to the CFD simulation, it was possible to characterize the nappe and to analyze the effects of pressure and velocity on the discharge coefficient. The results allow us to conclude that a triangular-rectangular weir widely satisfies the precision required in the delivery of water to irrigation users. |
| first_indexed | 2024-03-08T23:26:17Z |
| format | Article |
| id | doaj.art-f77eeb1a5e2d46c6a8f341b0336273f0 |
| institution | Directory Open Access Journal |
| issn | 0187-8336 2007-2422 |
| language | English |
| last_indexed | 2024-03-08T23:26:17Z |
| publishDate | 2021-07-01 |
| publisher | Instituto Mexicano de Tecnología del Agua |
| record_format | Article |
| series | Tecnología y ciencias del agua |
| spelling | doaj.art-f77eeb1a5e2d46c6a8f341b0336273f02023-12-14T17:18:09ZengInstituto Mexicano de Tecnología del AguaTecnología y ciencias del agua0187-83362007-24222021-07-0112411216210.24850/j-tyca-2021-04-032058Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD)Erick Dante Mattos-Villarroel0https://orcid.org/0000-0002-5640-5213Jorge Flores-Velazquez1https://orcid.org/0000-0003-0895-4645Waldo Ojeda-Bustamante2https://orcid.org/0000-0001-7183-9637Mauro Iñiguez-Covarrubias3Carlos Díaz-Delgado4https://orcid.org/0000-0001-6245-070XHumberto Salinas-Tapia5https://orcid.org/0000-0002-0075-6997Instituto Mexicano de Tecnología del Agua, Jiutepec, MorelosInstituto Mexicano de Tecnología del Agua, Jiutepec, MorelosColegio Mexicano de Ingenieros en Irrigación, MorelosInstituto Mexicano de Tecnología del Agua, Jiutepec, MorelosInstituto Interamericano de Tecnología y Ciencias del Agua, Universidad Autónoma del Estado de México, Toluca, State of MexicoInstituto Interamericano de Tecnología y Ciencias del Agua, Universidad Autónoma del Estado de México, Toluca, State of MexicoTo make an efficient delivery of water to irrigation users, it is necessary to have accurate dispositive to measure flow rates. These dispositive include triangular and rectangular weirs for measured flow rates ranges between 30 and 200 l s-1. However, the variation of flows in the execution of an agricultural year can be a factor of error in the volumetric delivery and a possible alternative solution is the use of a compound weir. The aim of this study was to analyze the hydraulic behavior of a triangular-rectangular weir, as a function of geometric and flow parameters and get a new global expression of the discharge coefficient. ANSYS Fluent was used to simulate the flow rates fluid, to discretized the dynamics of flow under specific conditions. The evaluation of the model with ANSYS Fluent, and its analysis, was carried out based on experimental data and the corresponding analytical solution. The Computational Fluid Dynamics (CFD) simulations showed statistical agreement with the laboratory data, finding a maximum error of 0.74 %. An expression of the global discharge coefficient was obtained and it was possible to analytically estimate the expenditure with a maximum error of 7.8 % with respect to experimental data. Thanks to the CFD simulation, it was possible to characterize the nappe and to analyze the effects of pressure and velocity on the discharge coefficient. The results allow us to conclude that a triangular-rectangular weir widely satisfies the precision required in the delivery of water to irrigation users.https://revistatyca.org.mx/index.php/tyca/article/view/2429weirnumerical simulationgaugingdischarge coefficient |
| spellingShingle | Erick Dante Mattos-Villarroel Jorge Flores-Velazquez Waldo Ojeda-Bustamante Mauro Iñiguez-Covarrubias Carlos Díaz-Delgado Humberto Salinas-Tapia Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD) Tecnología y ciencias del agua weir numerical simulation gauging discharge coefficient |
| title | Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD) |
| title_full | Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD) |
| title_fullStr | Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD) |
| title_full_unstemmed | Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD) |
| title_short | Hydraulic analysis of a compound weir (triangular-rectangular) simulated with computational fluid dynamics (CFD) |
| title_sort | hydraulic analysis of a compound weir triangular rectangular simulated with computational fluid dynamics cfd |
| topic | weir numerical simulation gauging discharge coefficient |
| url | https://revistatyca.org.mx/index.php/tyca/article/view/2429 |
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