Assessment of immersed boundary method as a tool for direct numerical simulation of aeroacoustic sound
An immersed boundary method of discrete type is tested as a tool for direct numerical simulation of aeroacoustic sound. The numerical method consists of the WENO scheme, the immersed boundary method by Chaudhuri et al. (J. Comp. Phys. Vol. 230, 1731–1748 (2011)), and the perfectly matched layer toge...
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2020-01-01
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| Series: | Journal of Fluid Science and Technology |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jfst/15/1/15_2020jfst0004/_pdf/-char/en |
| _version_ | 1830209219930882048 |
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| author | Kosei NISHIKAWA Kodai KONNO Yuji HATTORI |
| author_facet | Kosei NISHIKAWA Kodai KONNO Yuji HATTORI |
| author_sort | Kosei NISHIKAWA |
| collection | DOAJ |
| description | An immersed boundary method of discrete type is tested as a tool for direct numerical simulation of aeroacoustic sound. The numerical method consists of the WENO scheme, the immersed boundary method by Chaudhuri et al. (J. Comp. Phys. Vol. 230, 1731–1748 (2011)), and the perfectly matched layer together with the dyadic mesh refinement and the Runge-Kutta method. The accuracy of the method is shown to be sufficient for four basic problems: propagation of acoustic waves, aeroacoustic sound generation in a flow past a fixed circular cylinder, in a flow past an oscillating square cylinder, and from a vortex pair passing through a circular cylinder. The results confirm that the developed method can deal with moving bodies and it is accurate not only for viscous flows but also for inviscid flows. |
| first_indexed | 2024-12-18T05:04:39Z |
| format | Article |
| id | doaj.art-870d7cdfed3f4b7fa2d58f97fe510e8a |
| institution | Directory Open Access Journal |
| issn | 1880-5558 |
| language | English |
| last_indexed | 2024-12-18T05:04:39Z |
| publishDate | 2020-01-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Fluid Science and Technology |
| spelling | doaj.art-870d7cdfed3f4b7fa2d58f97fe510e8a2022-12-21T21:20:04ZengThe Japan Society of Mechanical EngineersJournal of Fluid Science and Technology1880-55582020-01-01151JFST0004JFST000410.1299/jfst.2020jfst0004jfstAssessment of immersed boundary method as a tool for direct numerical simulation of aeroacoustic soundKosei NISHIKAWA0Kodai KONNO1Yuji HATTORI2Graduate School of Information Sciences, Tohoku UniversityGraduate School of Information Sciences, Tohoku UniversityInstitute of Fluid Science, Tohoku UniversityAn immersed boundary method of discrete type is tested as a tool for direct numerical simulation of aeroacoustic sound. The numerical method consists of the WENO scheme, the immersed boundary method by Chaudhuri et al. (J. Comp. Phys. Vol. 230, 1731–1748 (2011)), and the perfectly matched layer together with the dyadic mesh refinement and the Runge-Kutta method. The accuracy of the method is shown to be sufficient for four basic problems: propagation of acoustic waves, aeroacoustic sound generation in a flow past a fixed circular cylinder, in a flow past an oscillating square cylinder, and from a vortex pair passing through a circular cylinder. The results confirm that the developed method can deal with moving bodies and it is accurate not only for viscous flows but also for inviscid flows.https://www.jstage.jst.go.jp/article/jfst/15/1/15_2020jfst0004/_pdf/-char/enaeroacoustic sounddirect numerical simulationimmersed boundary method |
| spellingShingle | Kosei NISHIKAWA Kodai KONNO Yuji HATTORI Assessment of immersed boundary method as a tool for direct numerical simulation of aeroacoustic sound Journal of Fluid Science and Technology aeroacoustic sound direct numerical simulation immersed boundary method |
| title | Assessment of immersed boundary method as a tool for direct numerical simulation of aeroacoustic sound |
| title_full | Assessment of immersed boundary method as a tool for direct numerical simulation of aeroacoustic sound |
| title_fullStr | Assessment of immersed boundary method as a tool for direct numerical simulation of aeroacoustic sound |
| title_full_unstemmed | Assessment of immersed boundary method as a tool for direct numerical simulation of aeroacoustic sound |
| title_short | Assessment of immersed boundary method as a tool for direct numerical simulation of aeroacoustic sound |
| title_sort | assessment of immersed boundary method as a tool for direct numerical simulation of aeroacoustic sound |
| topic | aeroacoustic sound direct numerical simulation immersed boundary method |
| url | https://www.jstage.jst.go.jp/article/jfst/15/1/15_2020jfst0004/_pdf/-char/en |
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