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Vortical flows in technical applications
https://jaxa.repo.nii.ac.jp/records/5945
https://jaxa.repo.nii.ac.jp/records/59451f76f76d-d43d-4231-bb7c-2422892121ce
名前 / ファイル | ライセンス | アクション |
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63154001.pdf (2.4 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Vortical flows in technical applications | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 航空機後流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流れ分布 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦度 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 直接数値シミュレーション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 自動車エンジン | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 翼 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ナビエ・ストークス方程式 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦流れ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦構造 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | エンジンシリンダ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Crow不安定性 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vortex | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | aircraft wake | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | flow distribution | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vorticity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | direct numerical simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | automobile engine | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | wing | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Navier-Stokes equation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vortical flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vortex structure | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | engine cylinder | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Crow instability | |||||
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 |
Krause, Egon
× Krause, Egon |
|||||
著者所属 | ||||||
RWTH Aachen Aerodynamisches Institut | ||||||
著者所属(英) | ||||||
en | ||||||
Rheinisch-Westfalische Technische Hochschule Aachen Aerodynamisches Institut | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構 | |||||
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: 航空宇宙数値シミュレーション技術シンポジウム2006論文集 en : JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2006 巻 JAXA-SP-06-010, p. 1-6, 発行日 2006-12-01 |
|||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Two examples of flows dominated by vortical structures are discussed: In the first interaction and decay of vortex structures in in-cylinder flows of automotive engines are described. Numerical studies revealed clearly identifiable vortex rings, generated during the intake stroke. The influence of compressibility on the vortex formation was studied by using Mach-Zehnder interferometry in a specially designed test stand of a towed one-cylinder engine, and with numerical solutions of the Navier-Stokes equations. In an industrial application a stable vortex ring could be generated by direct high-pressure liquid fuel injection, issuing a conical flow of evaporating droplets and stratifying the evaporated fuel to an ignitable air-fuel mixture. This concept led to a substantial reduction of fuel consumption. In the second example the state of the art of investigations aimed at finding means to destabilize tip vortices of aircraft wakes is briefly reviewed. Enforcing a more rapid decay compared to the natural one and reducing the downwash of large aircraft during take-off and landing are presently pursued in several studies. Discussed are the influence of the spanwise position of the engines, of winglets, of preset and oscillating ailerons on the vorticity distribution in the tip vortices and on their destabilization. The results are preliminary in nature. Further investigations in more detail are needed to substantiate previous findings. | |||||
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: AA0063154001 | |||||
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-06-010 |