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dc.contributor.authorHashım, Hafız Muhammad
dc.contributor.authorDogruoz, M. B.
dc.contributor.authorArık, Mehmet
dc.date.accessioned2018-04-08T12:37:31Z
dc.date.available2018-04-08T12:37:31Z
dc.date.issued2017
dc.identifier.isbn978-1-5090-2994-5
dc.identifier.issn1087-9870
dc.identifier.urihttp://hdl.handle.net/10679/5799
dc.identifier.urihttp://ieeexplore.ieee.org/document/7992548/
dc.descriptionDue to copyright restrictions, the access to the full text of this article is only available via subscription.
dc.description.abstractAxial fans are often used in cooling electronic enclosures where low noise levels are highly demanded. Therefore, methods for predicting the noise emitted by an application including single or multiple fans are desirable to improve, stimulate and reduce the cost of low-noise design. The prediction of sound generated from fluid flow has been difficult due to the non-linear form of the governing equations, however, recent developments in computational fluid dynamics (CFD) and computational acoustics allow us to determine sound pressure levels (SPL) in a fluid flow. In this study, time dependent flow field produced by an axial fan is computed via Large Eddy Simulations (LES), and the consequent sound pressure map is determined using the Ffowcs Williams-Hawkings (FW-H) model. Since an axial fan is a complex source of sound, for engineering design purposes, simplifications are needed when modelling its acoustic characteristics, therefore, the sound radiation of an axial fan in free space is examined by expanding the generated sound pressure field into spherical harmonics. In addition, acoustic measurements are carried out in a semi-anechoic chamber to validate the aforementioned computational models and make necessary comparisons. Comparison of the numerical results against the experimental data shows that, despite some discrepancies, the former is able to capture the trends observed in the measurements.en_US
dc.description.sponsorshipAselsan ; SSM (undersecretary of Turkish ministry of defense) ; Istanbul Development Agency
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.relation.ispartofThermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2017 16th IEEE Intersociety Conference on
dc.rightsrestrictedAccess
dc.titleAcoustic analysis of an axial fanen_US
dc.typeConference paperen_US
dc.publicationstatusPublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID(ORCID 0000-0002-9505-281X & YÖK ID 124782) Arık, Mehmet
dc.contributor.ozuauthorArık, Mehmet
dc.identifier.startpage645en_US
dc.identifier.endpage651en_US
dc.identifier.wosWOS:000426688100100
dc.identifier.doi10.1109/ITHERM.2017.7992548en_US
dc.subject.keywordsAcousticsen_US
dc.subject.keywordsAxial fanen_US
dc.subject.keywordsCFDen_US
dc.subject.keywordsFWH modelen_US
dc.subject.keywordsLESen_US
dc.subject.keywordsSPLen_US
dc.identifier.scopusSCOPUS:2-s2.0-85034430206
dc.contributor.ozugradstudentHashım, Hafız Muhammad
dc.contributor.authorMale2


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