Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases II

Autores
Coussirat, Miguel; Moll, Flavio
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión aceptada
Descripción
In the first part of this work a broad discussion related to steady and unsteady state cavitation cases and the calibration of turbulence models in steady state cases simulations was presented. In this second part, a numerical analysis of the unsteady flow behavior in nozzles of injectors/atomizers is presented. Previous works showed that it is possible to capture several of the incipient cavitating flow characteristics performing a careful calibration of the Eddy Viscosity Models in nozzles. This work extends the numerical study for these nozzles in cases where the fully developed cavitation state appears. Again, a careful calibration of the selected Eddy Viscosity Models becomes an important task to obtain accurate predictions of the flow. The results obtained show that it is possible to capture the main cavity features and the characteristic frequencies of the flow unsteadiness. The obtained conclusions could be useful to improve injectors design using numerical modeling, because the detection of the typical frequencies related to the flow unsteadiness could be useful to detect possible coupling between some of these frequencies and one of the natural vibration modes of the nozzle leading to a possible undesired fluid- structure interaction.
Fil: Universidad Tecnológica Nacional. Facultad Regional Mendoza, Argentina
Peer Reviewed
Fuente
Mecánica Computacional (26), 785-794. (2021)
Materia
Developed Cavitation, Injectors, Atomizers, Turbulence, Eddy Viscosity Models, Validation/Calibration.
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2024-04-11T12:18:15Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/10452
Acceder
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network_acronym_str RIAUTN
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network_name_str Repositorio Institucional Abierto (UTN)
spelling Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases IICoussirat, MiguelMoll, FlavioDeveloped Cavitation, Injectors, Atomizers, Turbulence, Eddy Viscosity Models, Validation/Calibration.In the first part of this work a broad discussion related to steady and unsteady state cavitation cases and the calibration of turbulence models in steady state cases simulations was presented. In this second part, a numerical analysis of the unsteady flow behavior in nozzles of injectors/atomizers is presented. Previous works showed that it is possible to capture several of the incipient cavitating flow characteristics performing a careful calibration of the Eddy Viscosity Models in nozzles. This work extends the numerical study for these nozzles in cases where the fully developed cavitation state appears. Again, a careful calibration of the selected Eddy Viscosity Models becomes an important task to obtain accurate predictions of the flow. The results obtained show that it is possible to capture the main cavity features and the characteristic frequencies of the flow unsteadiness. The obtained conclusions could be useful to improve injectors design using numerical modeling, because the detection of the typical frequencies related to the flow unsteadiness could be useful to detect possible coupling between some of these frequencies and one of the natural vibration modes of the nozzle leading to a possible undesired fluid- structure interaction.Fil: Universidad Tecnológica Nacional. Facultad Regional Mendoza, ArgentinaPeer Reviewed2024-04-11T12:18:15Z2024-04-11T12:18:15Z2021-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfhttp://hdl.handle.net/20.500.12272/10452*Mecánica Computacional (26), 785-794. (2021)reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacionalenginfo:eu-repo/semantics/openAccess2024-04-11T12:18:15Zhttp://creativecommons.org/publicdomain/zero/1.0/CC0 1.0 UniversalUniversidad Tecnológica Nacional. Facultad Regional MendozaAtribución2026-09-24T12:46:20Zoai:ria.utn.edu.ar:20.500.12272/10452instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-09-24 12:46:21.498Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases II
title Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases II
spellingShingle Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases II
Coussirat, Miguel
Developed Cavitation, Injectors, Atomizers, Turbulence, Eddy Viscosity Models, Validation/Calibration.
title_short Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases II
title_full Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases II
title_fullStr Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases II
title_full_unstemmed Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases II
title_sort Numerical study of cavitating flow in asymmetrical nozzles of injectors/atomizers. application to fully developed cavitation cases II
dc.creator.none.fl_str_mv Coussirat, Miguel
Moll, Flavio
author Coussirat, Miguel
author_facet Coussirat, Miguel
Moll, Flavio
author_role author
author2 Moll, Flavio
author2_role author
dc.subject.none.fl_str_mv Developed Cavitation, Injectors, Atomizers, Turbulence, Eddy Viscosity Models, Validation/Calibration.
topic Developed Cavitation, Injectors, Atomizers, Turbulence, Eddy Viscosity Models, Validation/Calibration.
dc.description.none.fl_txt_mv In the first part of this work a broad discussion related to steady and unsteady state cavitation cases and the calibration of turbulence models in steady state cases simulations was presented. In this second part, a numerical analysis of the unsteady flow behavior in nozzles of injectors/atomizers is presented. Previous works showed that it is possible to capture several of the incipient cavitating flow characteristics performing a careful calibration of the Eddy Viscosity Models in nozzles. This work extends the numerical study for these nozzles in cases where the fully developed cavitation state appears. Again, a careful calibration of the selected Eddy Viscosity Models becomes an important task to obtain accurate predictions of the flow. The results obtained show that it is possible to capture the main cavity features and the characteristic frequencies of the flow unsteadiness. The obtained conclusions could be useful to improve injectors design using numerical modeling, because the detection of the typical frequencies related to the flow unsteadiness could be useful to detect possible coupling between some of these frequencies and one of the natural vibration modes of the nozzle leading to a possible undesired fluid- structure interaction.
Fil: Universidad Tecnológica Nacional. Facultad Regional Mendoza, Argentina
Peer Reviewed
description In the first part of this work a broad discussion related to steady and unsteady state cavitation cases and the calibration of turbulence models in steady state cases simulations was presented. In this second part, a numerical analysis of the unsteady flow behavior in nozzles of injectors/atomizers is presented. Previous works showed that it is possible to capture several of the incipient cavitating flow characteristics performing a careful calibration of the Eddy Viscosity Models in nozzles. This work extends the numerical study for these nozzles in cases where the fully developed cavitation state appears. Again, a careful calibration of the selected Eddy Viscosity Models becomes an important task to obtain accurate predictions of the flow. The results obtained show that it is possible to capture the main cavity features and the characteristic frequencies of the flow unsteadiness. The obtained conclusions could be useful to improve injectors design using numerical modeling, because the detection of the typical frequencies related to the flow unsteadiness could be useful to detect possible coupling between some of these frequencies and one of the natural vibration modes of the nozzle leading to a possible undesired fluid- structure interaction.
publishDate 2021
dc.date.none.fl_str_mv 2021-11-01
2024-04-11T12:18:15Z
2024-04-11T12:18:15Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12272/10452
*
url http://hdl.handle.net/20.500.12272/10452
identifier_str_mv *
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2024-04-11T12:18:15Z
http://creativecommons.org/publicdomain/zero/1.0/
CC0 1.0 Universal
Universidad Tecnológica Nacional. Facultad Regional Mendoza
Atribución
eu_rights_str_mv openAccess
rights_invalid_str_mv 2024-04-11T12:18:15Z
http://creativecommons.org/publicdomain/zero/1.0/
CC0 1.0 Universal
Universidad Tecnológica Nacional. Facultad Regional Mendoza
Atribución
dc.format.none.fl_str_mv pdf
application/pdf
dc.source.none.fl_str_mv Mecánica Computacional (26), 785-794. (2021)
reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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score 13.265058

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