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Friction drag reduction of a spatially developing boundary layer using a combined uniform suction and blowing
https://jaxa.repo.nii.ac.jp/records/22730
https://jaxa.repo.nii.ac.jp/records/227306ee7480d-bafd-4f57-8a30-9f98dda354cd
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2016-07-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Friction drag reduction of a spatially developing boundary layer using a combined uniform suction and blowing | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Boundary layer | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Friction drag | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Numerical simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Uniform suction | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Uniform blowing | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
野口, 大悟
× 野口, 大悟× 深潟, 康二× 徳川, 直子× Noguchi, Daigo× Fukagata, Koji× Tokugawa, Naoko |
|||||
著者所属 | ||||||
慶應義塾大学 | ||||||
著者所属 | ||||||
慶應義塾大学 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構航空技術部門(JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Keio University | ||||||
著者所属(英) | ||||||
en | ||||||
Keio University | ||||||
著者所属(英) | ||||||
en | ||||||
Aeronautical Technology Directorate, Japan Aerospace Exploration Agency (JAXA) | ||||||
出版者 | ||||||
出版者 | 日本機械学会 | |||||
出版者(英) | ||||||
出版者 | The Japan Society of Mechanical Engineers | |||||
書誌情報 |
en : Journal of Fluid Science and Technology 巻 11, 号 1, p. JFST0004, 発行日 2016-02-17 |
|||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Uniform suction or blowing from the wall is one of the methods to reduce the friction drag. The uniform suction improves the stability of a laminar boundary layer: the transition will be delayed and the overall friction drag will be reduced due to the extended laminar region. In contrast, the uniform blowing is known to reduce the drag in the fully-turbulent regime. Therefore, a combination of uniform suction and blowing is expected to be effective for flows involving transition, such as the flow around an airfoil, by delaying the transition near the trailing edge and by reducing the turbulent drag in the post-transition (i.e., turbulent) region. The objective of this study is to investigate the friction drag reduction effect of such a combined uniform suction and blowing. The Reynolds-Averaged Navier-Stokes simulation is used to deal with a spatially developing boundary layer on a flat plate at a practically high Reynolds number. As a result, the combined control is found to reduce the global skin friction coefficient by 44.1%, whereof the contribution of transition delay by the uniform suction is about 90%, and that of turbulent drag reduction by the uniform blowing is about 10%. It is also found that the position of the blowing region should better be located in the upstream side of the turbulent region because the drag reduction effect is sustained for a while even after the blowing is terminated. | |||||
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 | 1880-5558 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | http://dx.doi.org/10.1299/jfst.2016jfst0004 | |||||
関連名称 | info:doi/10.1299/jfst.2016jfst0004 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: PA1620038000 |