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Betz analysis of a single flapping foil power generator
https://jaxa.repo.nii.ac.jp/records/3445
https://jaxa.repo.nii.ac.jp/records/34450791d038-7b24-4a6a-9962-1f2e1abcb7ee
名前 / ファイル | ライセンス | アクション |
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AA1630046052.pdf (1.2 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2017-04-27 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Betz analysis of a single flapping foil power generator | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Flapping foil | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Power generation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Betz analysis | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||
資源タイプ | conference paper | |||||
著者 |
Young, John
× Young, John× 田, 方宝× Lai, Joseph C.S.× Young, John× Tian, Fang-Bao× Lai, Joseph C.S. |
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著者所属(英) | ||||||
en | ||||||
The University of New South Wales | ||||||
著者所属(英) | ||||||
en | ||||||
The University of New South Wales | ||||||
著者所属(英) | ||||||
en | ||||||
The University of New South Wales | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構(JAXA) | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: Proceedings of the First International Symposium on Flutter and its Application 巻 JAXA-SP-16-008E, p. 485-494, 発行日 2017-03-15 |
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会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | First International Symposium on Flutter and its Application (May 15-17, 2016. Mielparque-tokyo), Minato-ku, Tokyo, Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The Betz limit for extraction of power from a flowing fluid is based upon an assumption of steady flow, and effects from viscosity and non-uniform pressures are ignored. Flapping foils used for power generation involve inherently highly unsteady flows, and operate most effectively when there is significant vortex shedding from the foil leading edge. This work conducts an analysis of the theoretical limits of efficiency for such an unsteady system, for the first time. Analysis of the magnitude and impact of the unsteady effects shows that the action of shed vortices as they convect downstream entrains a significant amount of momentum and kinetic energy into the wake of the foil. This entrainment is likely insufficient to render the Betz limit invalid for a single foil, however it is promising for a tandem foil system where the downstream foil benefits from this re-energisation of the upstrem foil wake, and suggests a mechanism by which the Betz limit for such a system (64%) might theoretically be exceeded. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA1630046052 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-16-008E |