Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets

We present a two-point model to investigate the underlying source mechanisms for broadband shock-associated noise (BBSAN) in shock-containing supersonic jets. In the model presented, the generation of BBSAN is assumed to arise from the nonlinear interac- tion between downstream-propagating coherent...

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Detalles Bibliográficos
Autores: Wong, Marcus H., Jordan, Peter, Maia, Igor Albuquerque, Cavalieri, André Valdetaro Gomes, Kirby, Rhiannon, Fava, Thales Coelho Leite, Edgington-Mitchell, Daniel Michael
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:Brasil
Institución:Universidade Federal do Ceará (UFC)
Repositorio:Repositório Institucional da Universidade Federal do Ceará (UFC)
Idioma:portugués
OAI Identifier:oai:repositorio.ufc.br:riufc/62014
Acceso en línea:http://www.repositorio.ufc.br/handle/riufc/62014
Access Level:acceso abierto
Palabra clave:Aeroacoustics
Jet noise
Instability
id BR_d23b0aecf48131ea1244995f01ac4ad1
oai_identifier_str oai:repositorio.ufc.br:riufc/62014
network_acronym_str BR
network_name_str Brasil
repository_id_str
dc.title.pt_BR.fl_str_mv Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
title Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
spellingShingle Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
Wong, Marcus H.
Aeroacoustics
Jet noise
Instability
title_short Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
title_full Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
title_fullStr Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
title_full_unstemmed Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
title_sort Wavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jets
dc.creator.none.fl_str_mv Wong, Marcus H.
Jordan, Peter
Maia, Igor Albuquerque
Cavalieri, André Valdetaro Gomes
Kirby, Rhiannon
Fava, Thales Coelho Leite
Edgington-Mitchell, Daniel Michael
author Wong, Marcus H.
author_facet Wong, Marcus H.
Jordan, Peter
Maia, Igor Albuquerque
Cavalieri, André Valdetaro Gomes
Kirby, Rhiannon
Fava, Thales Coelho Leite
Edgington-Mitchell, Daniel Michael
author_role author
author2 Jordan, Peter
Maia, Igor Albuquerque
Cavalieri, André Valdetaro Gomes
Kirby, Rhiannon
Fava, Thales Coelho Leite
Edgington-Mitchell, Daniel Michael
author2_role author
author
author
author
author
author
dc.subject.por.fl_str_mv Aeroacoustics
Jet noise
Instability
topic Aeroacoustics
Jet noise
Instability
description We present a two-point model to investigate the underlying source mechanisms for broadband shock-associated noise (BBSAN) in shock-containing supersonic jets. In the model presented, the generation of BBSAN is assumed to arise from the nonlinear interac- tion between downstream-propagating coherent structures with the quasi-periodic shock cells in the jet plume. The turbulent perturbations are represented as axially-extended wavepackets and the shock cells are modelled as a set of stationary waveguide modes. Unlike previous BBSAN models, the physical parameters describing the hydrodynamic components are not scaled using the acoustic eld. Instead, the source characteristics of both the turbulent and shock components are extracted from the hydrodynamic region of large-eddy simulation and particle image velocimetry datasets. Apart from using extracted data, a reduced-order description of the wavepacket structure is obtained using parabolised stability equations. The validity of the model is tested by comparing far- eld sound pressure level predictions to azimuthally-decomposed experimental acoustic data from a cold Mach 1.5 underexpanded jet. At polar angles and frequencies where BBSAN dominates, encouraging comparisons of the radiated noise spectra for the rst three az- imuthal modes, in both frequency and amplitude ( 2dB/St at peak frequency), reinforce the suitability of using reduced-order wavepacket sources for predicting BBSAN peaks. On the other hand, wavepacket jitter is found to have a critical role in recovering sound amplitude at inter-peak frequencies. The paper presents a quantitative demonstration that the wavepacket-shock interaction, carefully reconstructed by extracting components from data or linearised models, contains the correct essential ow physics that accounts for most features of the far-eld BBSAN spectra.
publishDate 2021
dc.date.accessioned.fl_str_mv 2021-11-12T13:58:49Z
dc.date.available.fl_str_mv 2021-11-12T13:58:49Z
dc.date.issued.fl_str_mv 2021
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.citation.fl_str_mv WONG, Marcus H.; JORDAN, Peter; MAIA, Igor Albuquerque; CAVALIERI, André Valdetaro Gomes; KIRBY, Rhiannon; FAVA, Thales Coelho Leite; EDGINGTON-MITCHELL, Daniel. Wavepacket modelling of broadband shock-associated noise in supersonic jets. Journal of Fluid Mechanics, Cambridge University Press (CUP), v. 918, P.01-40, 10 jul, 2021. A9. doi:10.1017/jfm.2021.324
dc.identifier.uri.fl_str_mv http://www.repositorio.ufc.br/handle/riufc/62014
dc.identifier.issn.none.fl_str_mv 0022-1120 (Print)
1469-7645 (Online)
dc.identifier.other.none.fl_str_mv HAL Id : hal-03373345, version 1
DOI : 10.1017/jfm.2021.324
identifier_str_mv WONG, Marcus H.; JORDAN, Peter; MAIA, Igor Albuquerque; CAVALIERI, André Valdetaro Gomes; KIRBY, Rhiannon; FAVA, Thales Coelho Leite; EDGINGTON-MITCHELL, Daniel. Wavepacket modelling of broadband shock-associated noise in supersonic jets. Journal of Fluid Mechanics, Cambridge University Press (CUP), v. 918, P.01-40, 10 jul, 2021. A9. doi:10.1017/jfm.2021.324
0022-1120 (Print)
1469-7645 (Online)
HAL Id : hal-03373345, version 1
DOI : 10.1017/jfm.2021.324
url http://www.repositorio.ufc.br/handle/riufc/62014
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Cambridge University Press - https://royalsocietypublishing.org
publisher.none.fl_str_mv Cambridge University Press - https://royalsocietypublishing.org
dc.source.none.fl_str_mv reponame:Repositório Institucional da Universidade Federal do Ceará (UFC)
instname:Universidade Federal do Ceará (UFC)
instacron:UFC
instname_str Universidade Federal do Ceará (UFC)
instacron_str UFC
institution UFC
reponame_str Repositório Institucional da Universidade Federal do Ceará (UFC)
collection Repositório Institucional da Universidade Federal do Ceará (UFC)
bitstream.url.fl_str_mv http://repositorio.ufc.br/bitstream/riufc/62014/2/license.txt
http://repositorio.ufc.br/bitstream/riufc/62014/1/2021_art_mwong.pdf
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repository.name.fl_str_mv Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)
repository.mail.fl_str_mv bu@ufc.br || repositorio@ufc.br
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spelling 2021-11-12T13:58:49Z2021-11-12T13:58:49Z2021WONG, Marcus H.; JORDAN, Peter; MAIA, Igor Albuquerque; CAVALIERI, André Valdetaro Gomes; KIRBY, Rhiannon; FAVA, Thales Coelho Leite; EDGINGTON-MITCHELL, Daniel. Wavepacket modelling of broadband shock-associated noise in supersonic jets. Journal of Fluid Mechanics, Cambridge University Press (CUP), v. 918, P.01-40, 10 jul, 2021. A9. doi:10.1017/jfm.2021.3240022-1120 (Print)1469-7645 (Online)HAL Id : hal-03373345, version 1DOI : 10.1017/jfm.2021.324http://www.repositorio.ufc.br/handle/riufc/62014We present a two-point model to investigate the underlying source mechanisms for broadband shock-associated noise (BBSAN) in shock-containing supersonic jets. In the model presented, the generation of BBSAN is assumed to arise from the nonlinear interac- tion between downstream-propagating coherent structures with the quasi-periodic shock cells in the jet plume. The turbulent perturbations are represented as axially-extended wavepackets and the shock cells are modelled as a set of stationary waveguide modes. Unlike previous BBSAN models, the physical parameters describing the hydrodynamic components are not scaled using the acoustic eld. Instead, the source characteristics of both the turbulent and shock components are extracted from the hydrodynamic region of large-eddy simulation and particle image velocimetry datasets. Apart from using extracted data, a reduced-order description of the wavepacket structure is obtained using parabolised stability equations. The validity of the model is tested by comparing far- eld sound pressure level predictions to azimuthally-decomposed experimental acoustic data from a cold Mach 1.5 underexpanded jet. At polar angles and frequencies where BBSAN dominates, encouraging comparisons of the radiated noise spectra for the rst three az- imuthal modes, in both frequency and amplitude ( 2dB/St at peak frequency), reinforce the suitability of using reduced-order wavepacket sources for predicting BBSAN peaks. On the other hand, wavepacket jitter is found to have a critical role in recovering sound amplitude at inter-peak frequencies. The paper presents a quantitative demonstration that the wavepacket-shock interaction, carefully reconstructed by extracting components from data or linearised models, contains the correct essential ow physics that accounts for most features of the far-eld BBSAN spectra.Cambridge University Press - https://royalsocietypublishing.orgAeroacousticsJet noiseInstabilityWavepacket Modelling of Broadband Shock-Associated Noise in Supersonic Jetsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleporreponame:Repositório Institucional da Universidade Federal do Ceará (UFC)instname:Universidade Federal do Ceará (UFC)instacron:UFCinfo:eu-repo/semantics/openAccessWong, Marcus H.Jordan, PeterMaia, Igor AlbuquerqueCavalieri, André Valdetaro GomesKirby, RhiannonFava, Thales Coelho LeiteEdgington-Mitchell, Daniel MichaelLICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ufc.br/bitstream/riufc/62014/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52ORIGINAL2021_art_mwong.pdf2021_art_mwong.pdfapplication/pdf2563532http://repositorio.ufc.br/bitstream/riufc/62014/1/2021_art_mwong.pdfebaa86c10a39a523923eb0b6dce7e34cMD51riufc/620142021-11-12 10:58:49.335oai:repositorio.ufc.br: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Repositório InstitucionalPUBhttp://www.repositorio.ufc.br/ri-oai/requestbu@ufc.br || repositorio@ufc.bropendoar:2021-11-12T13:58:49Repositório Institucional da Universidade Federal do Ceará (UFC) - Universidade Federal do Ceará (UFC)false
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