Validation and analysis of turbulence modeling in pipe elbow under secondary flow conditions

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorInstituto Tecnológico de Aeronáutica-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorInstituto de Aeronáutica e Espaço-
Autor(es): dc.creatorCarloni, Ana Cristina Neves-
Autor(es): dc.creatorConde, Kevin Eduardo de-
Autor(es): dc.creatorPantaleão, Aluisio Viais-
Autor(es): dc.creatorAzevedo, João Luiz F. de-
Autor(es): dc.creatorRade, Domingos Alves-
Data de aceite: dc.date.accessioned2025-08-21T21:25:30Z-
Data de disponibilização: dc.date.available2025-08-21T21:25:30Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s40430-022-03899-9-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246357-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246357-
Descrição: dc.descriptionThe present work proposes to analyze the performance of five eddy-viscosity turbulence models in predicting an internal single-phase incompressible turbulent flow through an elbow pipe. Validation is achieved by comparison with LES and experimental benchmark results. Particular emphasis is placed in the study of the velocity fields under challenging conditions in terms of turbulence modeling. Ultimately, the analysis aims to determine the most adequate model among the analyzed ones in terms of accuracy, envisioning further application in multiphase flows. Results show that the SST closure is the most appropriate turbulence model to predict the velocity profile in regions of significant streamline curvature, whereas, in the presence of high adverse pressure gradients, the most appropriate one is the realizable k- ϵ model. Furthermore, a quantitative analysis suggests that a modification to the F1 blending function in the SST model may improve the mean velocity agreement with LES benchmark results in the near-wall region located downstream of the bend.-
Descrição: dc.descriptionPetrobras-
Descrição: dc.descriptionInstituto Tecnológico de Aeronáutica, SP-
Descrição: dc.descriptionDepartamento de Engenharia Mecânica Universidade Estadual Paulista “Júlio de Mesquita Filho”, SP-
Descrição: dc.descriptionInstituto de Aeronáutica e Espaço, SP-
Descrição: dc.descriptionDepartamento de Engenharia Mecânica Universidade Estadual Paulista “Júlio de Mesquita Filho”, SP-
Descrição: dc.descriptionPetrobras: CENPES/PDDP/TFCM-SEQUI Project 2018/00017-4-
Idioma: dc.languageen-
Relação: dc.relationJournal of the Brazilian Society of Mechanical Sciences and Engineering-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subject90-degree bent elbow-
Palavras-chave: dc.subjectPipe bend-
Palavras-chave: dc.subjectSecondary flow-
Palavras-chave: dc.subjectTurbulence models-
Título: dc.titleValidation and analysis of turbulence modeling in pipe elbow under secondary flow conditions-
Tipo de arquivo: dc.typevídeo-
Aparece nas coleções:Repositório Institucional - Unesp

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