Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results

Detalhes bibliográficos
Autor(a) principal: Cabezas-Gomez, Luben
Data de Publicação: 2008
Outros Autores: da Silva, Renato Cesar, Navarro, Helio Aparecido, Milioli, Fernando Eduardo [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.apm.2006.12.005
http://hdl.handle.net/11449/42484
Resumo: A methodology of identification and characterization of coherent structures mostly known as clusters is applied to hydrodynamic results of numerical simulation generated for the riser of a circulating fluidized bed. The numerical simulation is performed using the MICEFLOW code, which includes the two-fluids IIT's hydrodynamic model B. The methodology for cluster characterization that is used is based in the determination of four characteristics, related to average life time, average volumetric fraction of solid, existing time fraction and frequency of occurrence. The identification of clusters is performed by applying a criterion related to the time average value of the volumetric solid fraction. A qualitative rather than quantitative analysis is performed mainly owing to the unavailability of operational data used in the considered experiments. Concerning qualitative analysis, the simulation results are in good agreement with literature. Some quantitative comparisons between predictions and experiment were also presented to emphasize the capability of the modeling procedure regarding the analysis of macroscopic scale coherent structures. (c) 2007 Elsevier B.V. All rights reserved.
id UNSP_51cf22206688c88c4602444b1a797490
oai_identifier_str oai:repositorio.unesp.br:11449/42484
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation resultsclustersnumerical simulationgas-solid flowcirculating fluidized bedA methodology of identification and characterization of coherent structures mostly known as clusters is applied to hydrodynamic results of numerical simulation generated for the riser of a circulating fluidized bed. The numerical simulation is performed using the MICEFLOW code, which includes the two-fluids IIT's hydrodynamic model B. The methodology for cluster characterization that is used is based in the determination of four characteristics, related to average life time, average volumetric fraction of solid, existing time fraction and frequency of occurrence. The identification of clusters is performed by applying a criterion related to the time average value of the volumetric solid fraction. A qualitative rather than quantitative analysis is performed mainly owing to the unavailability of operational data used in the considered experiments. Concerning qualitative analysis, the simulation results are in good agreement with literature. Some quantitative comparisons between predictions and experiment were also presented to emphasize the capability of the modeling procedure regarding the analysis of macroscopic scale coherent structures. (c) 2007 Elsevier B.V. All rights reserved.Univ São Paulo, Escola Engn São Carlos, Dept Engn Mec, BR-13566 São Carlos, SP, BrazilUniversidade Federal de Mato Grosso do Sul (UFMS), Dept Ciencias Exatas, BR-79620 Tres Lagoas, MS, BrazilUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Estat Matemat Aplicada Computacao, BR-13506 Rio Claro, SP, BrazilUniv Estadual Paulista, Inst Geociencias & Ciencias Exatas, Dept Estat Matemat Aplicada Computacao, BR-13506 Rio Claro, SP, BrazilElsevier B.V.Universidade de São Paulo (USP)Universidade Federal de Mato Grosso do Sul (UFMS)Universidade Estadual Paulista (Unesp)Cabezas-Gomez, Lubenda Silva, Renato CesarNavarro, Helio AparecidoMilioli, Fernando Eduardo [UNESP]2014-05-20T15:34:17Z2014-05-20T15:34:17Z2008-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article327-340application/pdfhttp://dx.doi.org/10.1016/j.apm.2006.12.005Applied Mathematical Modelling. New York: Elsevier B.V., v. 32, n. 3, p. 327-340, 2008.0307-904Xhttp://hdl.handle.net/11449/4248410.1016/j.apm.2006.12.005WOS:000253102200006WOS000253102200006.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengApplied Mathematical Modelling2.617info:eu-repo/semantics/openAccess2023-12-23T06:15:03Zoai:repositorio.unesp.br:11449/42484Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:03:52.831183Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results
title Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results
spellingShingle Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results
Cabezas-Gomez, Luben
clusters
numerical simulation
gas-solid flow
circulating fluidized bed
title_short Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results
title_full Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results
title_fullStr Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results
title_full_unstemmed Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results
title_sort Cluster identification and characterization in the riser of a circulating fluidized bed from numerical simulation results
author Cabezas-Gomez, Luben
author_facet Cabezas-Gomez, Luben
da Silva, Renato Cesar
Navarro, Helio Aparecido
Milioli, Fernando Eduardo [UNESP]
author_role author
author2 da Silva, Renato Cesar
Navarro, Helio Aparecido
Milioli, Fernando Eduardo [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade de São Paulo (USP)
Universidade Federal de Mato Grosso do Sul (UFMS)
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Cabezas-Gomez, Luben
da Silva, Renato Cesar
Navarro, Helio Aparecido
Milioli, Fernando Eduardo [UNESP]
dc.subject.por.fl_str_mv clusters
numerical simulation
gas-solid flow
circulating fluidized bed
topic clusters
numerical simulation
gas-solid flow
circulating fluidized bed
description A methodology of identification and characterization of coherent structures mostly known as clusters is applied to hydrodynamic results of numerical simulation generated for the riser of a circulating fluidized bed. The numerical simulation is performed using the MICEFLOW code, which includes the two-fluids IIT's hydrodynamic model B. The methodology for cluster characterization that is used is based in the determination of four characteristics, related to average life time, average volumetric fraction of solid, existing time fraction and frequency of occurrence. The identification of clusters is performed by applying a criterion related to the time average value of the volumetric solid fraction. A qualitative rather than quantitative analysis is performed mainly owing to the unavailability of operational data used in the considered experiments. Concerning qualitative analysis, the simulation results are in good agreement with literature. Some quantitative comparisons between predictions and experiment were also presented to emphasize the capability of the modeling procedure regarding the analysis of macroscopic scale coherent structures. (c) 2007 Elsevier B.V. All rights reserved.
publishDate 2008
dc.date.none.fl_str_mv 2008-03-01
2014-05-20T15:34:17Z
2014-05-20T15:34:17Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.apm.2006.12.005
Applied Mathematical Modelling. New York: Elsevier B.V., v. 32, n. 3, p. 327-340, 2008.
0307-904X
http://hdl.handle.net/11449/42484
10.1016/j.apm.2006.12.005
WOS:000253102200006
WOS000253102200006.pdf
url http://dx.doi.org/10.1016/j.apm.2006.12.005
http://hdl.handle.net/11449/42484
identifier_str_mv Applied Mathematical Modelling. New York: Elsevier B.V., v. 32, n. 3, p. 327-340, 2008.
0307-904X
10.1016/j.apm.2006.12.005
WOS:000253102200006
WOS000253102200006.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Applied Mathematical Modelling
2.617
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 327-340
application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129280086900736

Registros relacionados