Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes

[EN] Numerical computations are commonly used for better understanding the unsteady processes in internal combustion engine components and their acoustic behavior. The acoustic characterization of a system requires that reflections from duct terminations are avoided, which is achieved either by usin...

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Autores: Torregrosa, A. J.|||0000-0003-0933-1626, Gil, A.|||0000-0001-7192-6992, Navarro, Roberto|||0000-0003-2587-4954, Fajardo, Pablo
Tipo de recurso: artículo
Fecha de publicación:2012
País:España
Institución:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/74820
Acceso en línea:https://riunet.upv.es/handle/10251/74820
Access Level:acceso abierto
Palabra clave:Non-reflecting boundary condition
CFD simulation
Method of characteristics
Anechoic end
Acoustic response
Exhaust muffler
INGENIERIA AEROESPACIAL
MAQUINAS Y MOTORES TERMICOS
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spelling Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codesTorregrosa, A. J.|||0000-0003-0933-1626Gil, A.|||0000-0001-7192-6992Navarro, Roberto|||0000-0003-2587-4954Fajardo, PabloNon-reflecting boundary conditionCFD simulationMethod of characteristicsAnechoic endAcoustic responseExhaust mufflerINGENIERIA AEROESPACIALMAQUINAS Y MOTORES TERMICOS[EN] Numerical computations are commonly used for better understanding the unsteady processes in internal combustion engine components and their acoustic behavior. The acoustic characterization of a system requires that reflections from duct terminations are avoided, which is achieved either by using highly dissipative terminations or, when an impulsive excitation is used, by placing long ducts between the system under study and the duct ends. In the latter case, the simulation of such a procedure would require a large computational domain with the associated high computational cost, unless non-reflecting boundary conditions are used. In this paper, first the different non-reflecting boundary conditions available in ANSYS-FLUENT are evaluated. Then, the development and implementation of an anechoic termination in a 3D-CFD code is presented. The performance of the new implementation is first validated in the classic Sod's shock tube problem, and then checked against numerical and experimental results of the flow and acoustic fields in automotive exhaust mufflers. The results obtained compare favorably with those from the conventional CFD approach and experiments, while the computational cost is significantly reduced.This work has been partially supported by Ministerio de Ciencia e Innovacion through grant No. DPI2009-14290. The authors wish to thank Dr. David R. Perry for his kind assistance in manuscript editing.Taylor & Francis GroupDepartamento de Máquinas y Motores TérmicosEscuela Técnica Superior de Ingeniería Aeroespacial y Diseño IndustrialInstituto Universitario de Investigación CMT - Clean Mobility & ThermofluidsMinisterio de Ciencia e InnovaciónRepositorio Institucional de la Universitat Politècnica de València Riunet20122012-09-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/74820reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengMinisterio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 DPI2009-14290 Herramientas Experimentales Y Computacionales Para El Silenciamiento De Plantas De Potencia Basadas En Turbinas De Gasopen accesshttp://purl.org/coar/access_right/c_abf2Reserva de todos los derechoshttp://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/748202026-06-13T07:49:27Z
dc.title.none.fl_str_mv Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes
title Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes
spellingShingle Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes
Torregrosa, A. J.|||0000-0003-0933-1626
Non-reflecting boundary condition
CFD simulation
Method of characteristics
Anechoic end
Acoustic response
Exhaust muffler
INGENIERIA AEROESPACIAL
MAQUINAS Y MOTORES TERMICOS
title_short Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes
title_full Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes
title_fullStr Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes
title_full_unstemmed Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes
title_sort Development of non-reflecting boundary condition for application in 3D computational fluid dynamics codes
dc.creator.none.fl_str_mv Torregrosa, A. J.|||0000-0003-0933-1626
Gil, A.|||0000-0001-7192-6992
Navarro, Roberto|||0000-0003-2587-4954
Fajardo, Pablo
author Torregrosa, A. J.|||0000-0003-0933-1626
author_facet Torregrosa, A. J.|||0000-0003-0933-1626
Gil, A.|||0000-0001-7192-6992
Navarro, Roberto|||0000-0003-2587-4954
Fajardo, Pablo
author_role author
author2 Gil, A.|||0000-0001-7192-6992
Navarro, Roberto|||0000-0003-2587-4954
Fajardo, Pablo
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Máquinas y Motores Térmicos
Escuela Técnica Superior de Ingeniería Aeroespacial y Diseño Industrial
Instituto Universitario de Investigación CMT - Clean Mobility & Thermofluids
Ministerio de Ciencia e Innovación
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Non-reflecting boundary condition
CFD simulation
Method of characteristics
Anechoic end
Acoustic response
Exhaust muffler
INGENIERIA AEROESPACIAL
MAQUINAS Y MOTORES TERMICOS
topic Non-reflecting boundary condition
CFD simulation
Method of characteristics
Anechoic end
Acoustic response
Exhaust muffler
INGENIERIA AEROESPACIAL
MAQUINAS Y MOTORES TERMICOS
description [EN] Numerical computations are commonly used for better understanding the unsteady processes in internal combustion engine components and their acoustic behavior. The acoustic characterization of a system requires that reflections from duct terminations are avoided, which is achieved either by using highly dissipative terminations or, when an impulsive excitation is used, by placing long ducts between the system under study and the duct ends. In the latter case, the simulation of such a procedure would require a large computational domain with the associated high computational cost, unless non-reflecting boundary conditions are used. In this paper, first the different non-reflecting boundary conditions available in ANSYS-FLUENT are evaluated. Then, the development and implementation of an anechoic termination in a 3D-CFD code is presented. The performance of the new implementation is first validated in the classic Sod's shock tube problem, and then checked against numerical and experimental results of the flow and acoustic fields in automotive exhaust mufflers. The results obtained compare favorably with those from the conventional CFD approach and experiments, while the computational cost is significantly reduced.
publishDate 2012
dc.date.none.fl_str_mv 2012
2012-09-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/74820
url https://riunet.upv.es/handle/10251/74820
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Ciencia e Innovación http://dx.doi.org/10.13039/501100004837 DPI2009-14290 Herramientas Experimentales Y Computacionales Para El Silenciamiento De Plantas De Potencia Basadas En Turbinas De Gas
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reserva de todos los derechos
http://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis Group
publisher.none.fl_str_mv Taylor & Francis Group
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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