Analysis of hydrodynamic forces on high-head slide gates using CFD
Coefficients that can be applied to current analytical expressions that predict the hydrodynamic forces and, particularly, the downpull phenomenon on an inverted 30° lip gate at a bottom outlet of a dam, were determined from Computational Fluid Dynamics (CFD) simulations. Two slide gates were simula...
- Autores:
-
Arango Escobar, Juan Camilo
- Tipo de recurso:
- Fecha de publicación:
- 2018
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/69006
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/69006
http://bdigital.unal.edu.co/70400/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
Downpull
Gate
CFD
Compuertas deslizantes
Descarga de fondo
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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| dc.title.spa.fl_str_mv |
Analysis of hydrodynamic forces on high-head slide gates using CFD |
| title |
Analysis of hydrodynamic forces on high-head slide gates using CFD |
| spellingShingle |
Analysis of hydrodynamic forces on high-head slide gates using CFD 62 Ingeniería y operaciones afines / Engineering Downpull Gate CFD Compuertas deslizantes Descarga de fondo |
| title_short |
Analysis of hydrodynamic forces on high-head slide gates using CFD |
| title_full |
Analysis of hydrodynamic forces on high-head slide gates using CFD |
| title_fullStr |
Analysis of hydrodynamic forces on high-head slide gates using CFD |
| title_full_unstemmed |
Analysis of hydrodynamic forces on high-head slide gates using CFD |
| title_sort |
Analysis of hydrodynamic forces on high-head slide gates using CFD |
| dc.creator.fl_str_mv |
Arango Escobar, Juan Camilo |
| dc.contributor.author.spa.fl_str_mv |
Arango Escobar, Juan Camilo |
| dc.contributor.spa.fl_str_mv |
Molina, Alejandro |
| dc.subject.ddc.spa.fl_str_mv |
62 Ingeniería y operaciones afines / Engineering |
| topic |
62 Ingeniería y operaciones afines / Engineering Downpull Gate CFD Compuertas deslizantes Descarga de fondo |
| dc.subject.proposal.spa.fl_str_mv |
Downpull Gate CFD Compuertas deslizantes Descarga de fondo |
| description |
Coefficients that can be applied to current analytical expressions that predict the hydrodynamic forces and, particularly, the downpull phenomenon on an inverted 30° lip gate at a bottom outlet of a dam, were determined from Computational Fluid Dynamics (CFD) simulations. Two slide gates were simulated: A typical 45° lip used for model validation and the inverted 30° lip. These simulations made use of the VOF (Volume Of Fluid) multiphase model, embedded in the commercial software ANSYS FLUENT, to simulate the air and water interaction in the free surface flow downstream of the gate. The CFD predictions were successfully validated against those by analytical expressions that related the water discharge through the gate and the gate opening at a fixed reservoir head. The predicted downpull was in agreement with that obtained from analytical expression for the well-studied 45° lip gate. Through the validated CFD simulation it was possible to determine the coefficients for the analytical calculation of downpull on the inverted 30° gate, which were not available in the state-of-the-art analytical expressions. The methodology here described can easily be applied to different gate geometries for which design coefficients are not available. |
| publishDate |
2018 |
| dc.date.issued.spa.fl_str_mv |
2018-12-28 |
| dc.date.accessioned.spa.fl_str_mv |
2019-07-03T10:14:26Z |
| dc.date.available.spa.fl_str_mv |
2019-07-03T10:14:26Z |
| dc.type.spa.fl_str_mv |
Trabajo de grado - Maestría |
| dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/masterThesis |
| dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/acceptedVersion |
| dc.type.content.spa.fl_str_mv |
Text |
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http://purl.org/redcol/resource_type/TM |
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acceptedVersion |
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https://repositorio.unal.edu.co/handle/unal/69006 |
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http://bdigital.unal.edu.co/70400/ |
| url |
https://repositorio.unal.edu.co/handle/unal/69006 http://bdigital.unal.edu.co/70400/ |
| dc.language.iso.spa.fl_str_mv |
spa |
| language |
spa |
| dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Sede Medellín Facultad de Minas Escuela de Ingeniería Eléctrica y Mecánica Escuela de Ingeniería Eléctrica y Mecánica |
| dc.relation.references.spa.fl_str_mv |
Arango Escobar, Juan Camilo (2018) Analysis of hydrodynamic forces on high-head slide gates using CFD. Maestría thesis, Universidad Nacional de Colombia - Sede Medellín. |
| dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
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http://purl.org/coar/access_right/c_abf2 |
| dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
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http://creativecommons.org/licenses/by-nc/4.0/ |
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info:eu-repo/semantics/openAccess |
| rights_invalid_str_mv |
Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
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openAccess |
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application/pdf |
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Universidad Nacional de Colombia |
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https://repositorio.unal.edu.co/bitstream/unal/69006/1/1037607066.2018.pdf https://repositorio.unal.edu.co/bitstream/unal/69006/2/1037607066.2018.pdf.jpg |
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Repositorio Institucional Universidad Nacional de Colombia |
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repositorio_nal@unal.edu.co |
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1814089319395098624 |
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Molina, AlejandroArango Escobar, Juan Camilod89816bc-e3f9-4ef7-b030-a507d99665713002019-07-03T10:14:26Z2019-07-03T10:14:26Z2018-12-28https://repositorio.unal.edu.co/handle/unal/69006http://bdigital.unal.edu.co/70400/Coefficients that can be applied to current analytical expressions that predict the hydrodynamic forces and, particularly, the downpull phenomenon on an inverted 30° lip gate at a bottom outlet of a dam, were determined from Computational Fluid Dynamics (CFD) simulations. Two slide gates were simulated: A typical 45° lip used for model validation and the inverted 30° lip. These simulations made use of the VOF (Volume Of Fluid) multiphase model, embedded in the commercial software ANSYS FLUENT, to simulate the air and water interaction in the free surface flow downstream of the gate. The CFD predictions were successfully validated against those by analytical expressions that related the water discharge through the gate and the gate opening at a fixed reservoir head. The predicted downpull was in agreement with that obtained from analytical expression for the well-studied 45° lip gate. Through the validated CFD simulation it was possible to determine the coefficients for the analytical calculation of downpull on the inverted 30° gate, which were not available in the state-of-the-art analytical expressions. The methodology here described can easily be applied to different gate geometries for which design coefficients are not available.Resumen: Los coeficientes aplicables a las expresiones analíticas actuales que predicen las fuerzas hidrodinámicas y, en particular, el fenómeno de “downpull” en una compuerta de labio invertida de 30° en una descarga de fondo de una gran presa, se determinaron a partir de simulaciones de dinámica de fluidos computacional (CFD). Se simularon dos compuertas deslizantes: una con labio típico de 45° utilizado para la validación del modelo y una con labio invertido de 30°. Estas simulaciones hicieron uso del modelo multifase VOF (Volumen de Fluido), disponible en el software comercial ANSYS FLUENT, para simular la interacción de aire y agua en el flujo de superficie libre aguas abajo de la compuerta. Las predicciones de CFD fueron validadas con las expresiones analíticas que relacionan la descarga de agua a través de la compuerta dada la posición y la presión hidrostática. El downpull encontrado estaba de acuerdo con el obtenido a partir de la expresión analítica para la compuerta de labio inferior de 45°. A través de la simulación CFD validada fue posible determinar los coeficientes para el cálculo analítico de downpull en la compuerta con labio invertido de 30°, que no estaban disponibles en las expresiones analíticas disponibles. La metodología aquí descrita se puede aplicar fácilmente a diferentes geometrías de compuertas para las cuales los coeficientes de diseño no están disponibles.Maestríaapplication/pdfspaUniversidad Nacional de Colombia Sede Medellín Facultad de Minas Escuela de Ingeniería Eléctrica y MecánicaEscuela de Ingeniería Eléctrica y MecánicaArango Escobar, Juan Camilo (2018) Analysis of hydrodynamic forces on high-head slide gates using CFD. Maestría thesis, Universidad Nacional de Colombia - Sede Medellín.62 Ingeniería y operaciones afines / EngineeringDownpullGateCFDCompuertas deslizantesDescarga de fondoAnalysis of hydrodynamic forces on high-head slide gates using CFDTrabajo de grado - Maestríainfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/acceptedVersionTexthttp://purl.org/redcol/resource_type/TMORIGINAL1037607066.2018.pdfTesis de Maestría en Ingeniería Mecánicaapplication/pdf3430722https://repositorio.unal.edu.co/bitstream/unal/69006/1/1037607066.2018.pdf03f5f1bc1b092115b3dddc247d986c19MD51THUMBNAIL1037607066.2018.pdf.jpg1037607066.2018.pdf.jpgGenerated Thumbnailimage/jpeg5053https://repositorio.unal.edu.co/bitstream/unal/69006/2/1037607066.2018.pdf.jpg7c63faf00b6b07f878c28ffd301fe4ddMD52unal/69006oai:repositorio.unal.edu.co:unal/690062023-08-03 09:20:01.594Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |