Numerical Investigation of the Flow Structure and Acoustical Noise in a Suppressor

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dc.contributor.authorYimam, Ezedin Ayaliew
dc.contributor.authorDemircan, Tolga
dc.date.accessioned2025-01-21T16:42:59Z
dc.date.available2025-01-21T16:42:59Z
dc.date.issued2024
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThe noise created when a firearm is fired has a lot of adverse effects on humans and the environment, so analyzing and attenuating this noise is essential. This study aimed to examine propellant flow and the sound generated by this flow using a hybrid computational fluid dynamics and computational aeroacoustics method. The compatibility of this numerical study was also validated by comparing it with the experimental result. The impact of critical parameters, such as the shape and number of baffles of the suppressor, was studied. Finally, the overpressure and acoustics results of different suppressors were compared with each other and with the unsuppressed condition. According to the result, the suppressor with curved baffles shows a better performance. When the exit pressure at the tip of suppressor compared to the initial inlet pressure to the suppressor the percentage drop in overpressure was 76.01%, 78.79% and 81.3% for the suppressor with one, three and five curved baffles, respectively. For condition without suppressor, 169.49dB of SPL was recorded. When using a suppressor without a baffle, this value was reduced to 162.13dB. For the suppressor with one, three and five curved baffles, the SPL value was 160.234dB, 159.43dB and 158.11dB, respectively. Generally, this study shows that the suppressor's efficiency is directly proportional to its shape and number of baffles.
dc.identifier.doi10.1142/S0219477524500275
dc.identifier.issn0219-4775
dc.identifier.issn1793-6780
dc.identifier.issue3
dc.identifier.scopus2-s2.0-85185780859
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1142/S0219477524500275
dc.identifier.urihttps://hdl.handle.net/20.500.12587/25180
dc.identifier.volume23
dc.identifier.wosWOS:001164362500001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWorld Scientific Publ Co Pte Ltd
dc.relation.ispartofFluctuation and Noise Letters
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241229
dc.subjectNoise control; aeroacoustics; overpressure reduction; blast wave; suppressor
dc.titleNumerical Investigation of the Flow Structure and Acoustical Noise in a Suppressor
dc.typeArticle

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