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  1. 060 工学部
  2. 0601 学術論文

Effect of wing mass in free flight of a two-dimensional symmetric flapping wing-body model

http://hdl.handle.net/10091/00022526
b7906412-0b2a-4a34-9770-d14219f2b9ca
名前 / ファイル ライセンス アクション
16K18012_06.pdf 16K18012_06.pdf (2.5 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2021-02-16
タイトル
言語 en
タイトル Effect of wing mass in free flight of a two-dimensional symmetric flapping wing-body model
言語
言語 eng
キーワード
主題Scheme Other
主題 flapping flight
キーワード
主題Scheme Other
主題 wing mass
キーワード
主題Scheme Other
主題 lattice Boltzmann method
キーワード
主題Scheme Other
主題 immersed boundary method
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Suzuki, Kosuke

× Suzuki, Kosuke

WEKO 110290

Suzuki, Kosuke

Search repository
Aoki, Takaaki

× Aoki, Takaaki

WEKO 110291

Aoki, Takaaki

Search repository
Yoshino, Masato

× Yoshino, Masato

WEKO 110292

Yoshino, Masato

Search repository
信州大学研究者総覧へのリンク
氏名 Suzuki, Kosuke
URL https://soar-rd.shinshu-u.ac.jp/profile/ja.uayebUkh.html
信州大学研究者総覧へのリンク
氏名 Yoshino, Masato
URL https://soar-rd.shinshu-u.ac.jp/profile/ja.ONkpbpkh.html
出版者
出版者 IOP PUBLISHING LTD
引用
内容記述タイプ Other
内容記述 FLUID DYNAMICS RESEARCH.49(5):055504(2017)
書誌情報 FLUID DYNAMICS RESEARCH

巻 49, 号 5, p. 055504, 発行日 2017-08-11
抄録
内容記述タイプ Abstract
内容記述 The effect of wing mass in the free flight of a flapping wing is investigated by numerical simulations based on an immersed boundary-lattice Boltzmann method. We consider a model consisting of two-dimensional symmetric flapping wings with uniform mass density connected by a body represented as a point mass. We simulate free flights of the two-dimensional symmetric flapping wing with various mass ratios of the wings to the body. In free flights without gravity, it is found that the time-averaged lift force becomes smaller as the mass ratio increases, since with a large mass ratio the body experiences a large vertical oscillation in one period and consequently the wing-tip speed relatively decreases. We define the effective Reynolds number Reeff taking the body motion into consideration and investigate the critical value of Reeff over which the symmetry breaking of flows occurs. As a result, it is found that the critical value is Re-eff similar or equal to 70 independently of the mass ratio. In free flights with gravity, the time-averaged lift force becomes smaller as the mass ratio increases in the same way as free flights without gravity. In addition, the unstable rotational motion around the body is suppressed as the mass ratio increases, since with a large mass ratio the vortices shedding from the wing tip are small and easily decay.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 0169-5983
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10686129
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1088/1873-7005/aa7a9a
関連名称
関連名称 10.1088/1873-7005/aa7a9a
権利
権利情報 This is the Accepted Manuscript version of an article accepted for publication in FLUID DYNAMICS RESEARCH. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1873-7005/aa7a9a.© 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/.
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
WoS
表示名 Web of Science
URL http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000407780100002
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