Acoustic characteristics of a ported shroud turbocompressor operating at design conditions

[EN] In this article, the acoustic characterisation of a turbocharger compressor with ported shroud design is carried out through the numerical simulation of the system operating under design conditions of maximum isentropic efficiency. While ported shroud compressors have been proposed as a way to...

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Autores: Sharma, Sidharath, Allport, John M., Nickson, Ambrose K., Broatch, A.|||0000-0001-9991-1039, García-Tíscar, Jorge|||0000-0003-4934-4587
Tipo de recurso: artículo
Fecha de publicación:2020
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:10251/149928
Acceso en línea:https://riunet.upv.es/handle/10251/149928
Access Level:acceso abierto
Palabra clave:Compressor noise
Large eddy simulation
Modal decomposition
Proper orthogonal decomposition
Noise vibration &amp
harshness
Computational fluid dynamics
INGENIERIA AEROESPACIAL
MAQUINAS Y MOTORES TERMICOS
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spelling Acoustic characteristics of a ported shroud turbocompressor operating at design conditionsSharma, SidharathAllport, John M.Nickson, Ambrose K.Broatch, A.|||0000-0001-9991-1039García-Tíscar, Jorge|||0000-0003-4934-4587Compressor noiseLarge eddy simulationModal decompositionProper orthogonal decompositionNoise vibration &ampharshnessComputational fluid dynamicsINGENIERIA AEROESPACIALMAQUINAS Y MOTORES TERMICOS[EN] In this article, the acoustic characterisation of a turbocharger compressor with ported shroud design is carried out through the numerical simulation of the system operating under design conditions of maximum isentropic efficiency. While ported shroud compressors have been proposed as a way to control the flow near unstable conditions in order to obtain a more stable operation and enhance deep surge margin, it is often assumed that the behaviour under stable design conditions is characterised by a smooth, non-detached flow that matches an equivalent standard compressor. Furthermore, research is scarce regarding the acoustic effects of the ported shroud addition, especially under the design conditions. To analyse the flow field evolution and its relation with the noise generation, spectral signatures using statistical and scale-resolving turbulence modelling methods are obtained after successfully validating the performance and acoustic predictions of the numerical model with experimental measurements. Propagation of the frequency content through the ducts has been estimated with the aid of pressure decomposition methods to enhance the content coming from the compressor. Expected acoustic phenomena such as `buzz-saw¿ tones, blade passing peaks and broadband noise are correctly identified in the modelled spectrum. Analysis of the flow behaviour in the ported shroud shows rotating structures through the slot that may impact the acoustic and vibration response. Further inspection of the pressure field through modal decomposition confirms the influence of the ported shroud cavity in noise generation and propagation, especially at lower frequencies, suggesting that further research should be carried out on the impact these flow enhancement solutions have on the noise emission of the turbocharger.The project was sponsored and supported by BorgWarner Turbo Systems and the Regional Growth Fund (RGF Grant Award 01.09.07.01/1789C). The authors would like to thank BorgWarner Turbo Systems for permission to publish the results presented in this article. The support of the HPC group at the University of Huddersfield is gratefully acknowledged.SAGE PublicationsDepartamento de Máquinas y Motores TérmicosEscuela Técnica Superior de Ingeniería Aeroespacial y Diseño IndustrialInstituto Universitario de Investigación CMT - Clean Mobility & ThermofluidsBorgWarner Turbo SystemsRegional Growth Fund, Reino UnidoRepositorio Institucional de la Universitat Politècnica de València Riunet20202020-10-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/149928reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengRegional Growth Fund, Reino Unido RGF 01.09.07.01%2F1789Copen accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento - No comercial (by-nc) http://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/1499282026-06-13T07:49:27Z
dc.title.none.fl_str_mv Acoustic characteristics of a ported shroud turbocompressor operating at design conditions
title Acoustic characteristics of a ported shroud turbocompressor operating at design conditions
spellingShingle Acoustic characteristics of a ported shroud turbocompressor operating at design conditions
Sharma, Sidharath
Compressor noise
Large eddy simulation
Modal decomposition
Proper orthogonal decomposition
Noise vibration &amp
harshness
Computational fluid dynamics
INGENIERIA AEROESPACIAL
MAQUINAS Y MOTORES TERMICOS
title_short Acoustic characteristics of a ported shroud turbocompressor operating at design conditions
title_full Acoustic characteristics of a ported shroud turbocompressor operating at design conditions
title_fullStr Acoustic characteristics of a ported shroud turbocompressor operating at design conditions
title_full_unstemmed Acoustic characteristics of a ported shroud turbocompressor operating at design conditions
title_sort Acoustic characteristics of a ported shroud turbocompressor operating at design conditions
dc.creator.none.fl_str_mv Sharma, Sidharath
Allport, John M.
Nickson, Ambrose K.
Broatch, A.|||0000-0001-9991-1039
García-Tíscar, Jorge|||0000-0003-4934-4587
author Sharma, Sidharath
author_facet Sharma, Sidharath
Allport, John M.
Nickson, Ambrose K.
Broatch, A.|||0000-0001-9991-1039
García-Tíscar, Jorge|||0000-0003-4934-4587
author_role author
author2 Allport, John M.
Nickson, Ambrose K.
Broatch, A.|||0000-0001-9991-1039
García-Tíscar, Jorge|||0000-0003-4934-4587
author2_role author
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
BorgWarner Turbo Systems
Regional Growth Fund, Reino Unido
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Compressor noise
Large eddy simulation
Modal decomposition
Proper orthogonal decomposition
Noise vibration &amp
harshness
Computational fluid dynamics
INGENIERIA AEROESPACIAL
MAQUINAS Y MOTORES TERMICOS
topic Compressor noise
Large eddy simulation
Modal decomposition
Proper orthogonal decomposition
Noise vibration &amp
harshness
Computational fluid dynamics
INGENIERIA AEROESPACIAL
MAQUINAS Y MOTORES TERMICOS
description [EN] In this article, the acoustic characterisation of a turbocharger compressor with ported shroud design is carried out through the numerical simulation of the system operating under design conditions of maximum isentropic efficiency. While ported shroud compressors have been proposed as a way to control the flow near unstable conditions in order to obtain a more stable operation and enhance deep surge margin, it is often assumed that the behaviour under stable design conditions is characterised by a smooth, non-detached flow that matches an equivalent standard compressor. Furthermore, research is scarce regarding the acoustic effects of the ported shroud addition, especially under the design conditions. To analyse the flow field evolution and its relation with the noise generation, spectral signatures using statistical and scale-resolving turbulence modelling methods are obtained after successfully validating the performance and acoustic predictions of the numerical model with experimental measurements. Propagation of the frequency content through the ducts has been estimated with the aid of pressure decomposition methods to enhance the content coming from the compressor. Expected acoustic phenomena such as `buzz-saw¿ tones, blade passing peaks and broadband noise are correctly identified in the modelled spectrum. Analysis of the flow behaviour in the ported shroud shows rotating structures through the slot that may impact the acoustic and vibration response. Further inspection of the pressure field through modal decomposition confirms the influence of the ported shroud cavity in noise generation and propagation, especially at lower frequencies, suggesting that further research should be carried out on the impact these flow enhancement solutions have on the noise emission of the turbocharger.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-10-01
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/10251/149928
url https://riunet.upv.es/handle/10251/149928
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Regional Growth Fund, Reino Unido RGF 01.09.07.01%2F1789C
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento - No comercial (by-nc)
http://creativecommons.org/licenses/by-nc/4.0/
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
Reconocimiento - No comercial (by-nc)
http://creativecommons.org/licenses/by-nc/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv SAGE Publications
publisher.none.fl_str_mv SAGE Publications
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
_version_ 1869404393924722688
score 15.228081

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