Active acoustic cloaking in a convected flow field

Eggler, D; Karimi, M; Kessissoglou, N

Active acoustic cloaking in a convected flow field

Eggler, D Karimi, M

Kessissoglou, N

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Publication Type:: Journal Article
Citation:: Journal of the Acoustical Society of America, 2019, 146 (1), pp. 586 - 594
Issue Date:: 2019-07-01

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Field	Value	Language
dc.contributor.author	Eggler, D	en_US
dc.contributor.author	Karimi, M https://orcid.org/0000-0002-2949-5364	en_US
dc.contributor.author	Kessissoglou, N	en_US
dc.date.available	2020-05-25T19:04:34Z
dc.date.issued	2019-07-01	en_US
dc.identifier.citation	Journal of the Acoustical Society of America, 2019, 146 (1), pp. 586 - 594	en_US
dc.identifier.issn	0001-4966	en_US
dc.identifier.uri	http://hdl.handle.net/10453/136803
dc.description.abstract	© 2019 Acoustical Society of America. Acoustic cloaking has mostly been considered within a stationary fluid. The authors herein show that accounting for the effects of convection in the presence of fluid flow is critical for cloaking in the acoustic domain. This work presents active acoustic cloaking in a convected flow field for two different incident fields, corresponding to a plane wave and a single monopole source, impinging on a rigid body. Monopole control sources circumferentially arranged around the rigid body are used to generate a secondary acoustic field to destructively interfere with the primary scattered field arising from the incident excitation cases. The authors show that for sound waves in a moving fluid, active cloaking can only be achieved using a convected cloak, which is dependent on Mach number.	en_US
dc.relation.ispartof	Journal of the Acoustical Society of America	en_US
dc.relation.isbasedon	10.1121/1.5119225	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.classification	Acoustics	en_US
dc.title	Active acoustic cloaking in a convected flow field	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	146	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
utslib.copyright.status	open_access	*
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	146	en_US

Abstract:

© 2019 Acoustical Society of America. Acoustic cloaking has mostly been considered within a stationary fluid. The authors herein show that accounting for the effects of convection in the presence of fluid flow is critical for cloaking in the acoustic domain. This work presents active acoustic cloaking in a convected flow field for two different incident fields, corresponding to a plane wave and a single monopole source, impinging on a rigid body. Monopole control sources circumferentially arranged around the rigid body are used to generate a secondary acoustic field to destructively interfere with the primary scattered field arising from the incident excitation cases. The authors show that for sound waves in a moving fluid, active cloaking can only be achieved using a convected cloak, which is dependent on Mach number.

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http://hdl.handle.net/10453/136803