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Direct numerical simulation of flapping flags in grid-induced turbulence
https://oist.repo.nii.ac.jp/records/2533
https://oist.repo.nii.ac.jp/records/2533f1aad18a-ceaf-4284-bedb-e957c1c0f455
名前 / ファイル | ライセンス | アクション |
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POF21-AR-02684 (3.5 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-01-27 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Direct numerical simulation of flapping flags in grid-induced turbulence | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Olivieri, Stefano
× Olivieri, Stefano× Viola, Francesco× Mazzino, Andrea× Rosti, Marco E. |
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書誌情報 |
en : Physics of Fluids 巻 33, 号 8, p. 085116, 発行日 2021-08-06 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | A fully resolved direct numerical simulation approach for investigating flexible bodies forced by a turbulent incoming flow is designed to study the flapping motion of a flexible flag at the moderate Reynolds number. The incoming turbulent flow is generated by placing a passive grid at the inlet of the numerical domain and the turbulence level of the flow, impacting that the flag can be controlled by changing its downstream distance from the grid. The computational framework is based on the immersed boundary method for dealing with arbitrary geometries and implemented using a graphics-processing-unit accelerated parallelization to increase the computational efficiency. The grid-induced turbulent flow is first characterized by means of comparison with well-known results for decaying turbulence and a scale-by-scale analysis. Then, the flag-in-the-wind problem is revisited by exploring the effect of the turbulence intensity on self-sustained flapping. While the latter is still manifesting under strong fluctuations, the main features of the oscillation (including its amplitude and frequency) are altered by turbulence, whose fingerprint can also be qualitatively detected by spectral analysis. Besides their relevance for advancing the fundamental understanding of the fluid–structure interaction in turbulence, these findings have potential impact for related applications, e.g., aeroelastic energy harvesting or flow control techniques. | |||||
出版者 | ||||||
出版者 | AIP Publishing | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1070-6631 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1089-7666 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1063/5.0060181 | |||||
権利 | ||||||
権利情報 | © 2021 The Author(s). This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Physics of Fluids and may be found at https://aip.scitation.org/doi/full/10.1063/5.0060181 | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://aip.scitation.org/doi/full/10.1063/5.0060181 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |