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円形ヘリウムガス噴流に生じるサイドジェット
https://jaxa.repo.nii.ac.jp/records/5432
https://jaxa.repo.nii.ac.jp/records/54321c39564e-0c12-42ba-9f8d-53d301028258
名前 / ファイル | ライセンス | アクション |
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64303030.pdf (2.6 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 | ||||||
タイトル | 円形ヘリウムガス噴流に生じるサイドジェット | |||||
言語 | ||||||
言語 | jpn | |||||
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 | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Side jets generated at the near field of round helium gas jets | |||||
著者 |
村松, 旦典
× 村松, 旦典× Muramatsu, Akinori× Gamba, Mirko× Clemens, Noel T. |
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著者所属 | ||||||
日本大学理工学部 | ||||||
著者所属 | ||||||
テキサス大学大学院 | ||||||
著者所属 | ||||||
テキサス大学工学部 | ||||||
著者所属(英) | ||||||
en | ||||||
College of Science and Technology, Nihon University | ||||||
著者所属(英) | ||||||
en | ||||||
University of Texas | ||||||
著者所属(英) | ||||||
en | ||||||
University of Texas | ||||||
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: 第40回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2008論文集 en : JAXA Special Publication: Proceedings fo 40th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2008 巻 JAXA-SP-08-009, 発行日 2009-02-27 |
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会議概要(会議名, 開催地, 会期, 主催者等) | ||||||
内容記述タイプ | Other | |||||
内容記述 | 第40回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2008. 会期: 2008年6月12日-6月13日. 会場: 東北大学片平キャンパス | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Side jets, which are radial ejections of jet fluid, are formed in the near field of low-density jets, such as helium gas and hot air jets. Side jets enhance the mixing of fluids between the jet and the ambient fluid in the vicinity of the nozzle exit. It is essential to understand the formation mechanism of side jets in order to take advantage of side jets and control the enhanced mixing of a jet. Side jets in round helium gas jets were investigated using planar laser Mie scattering (PLMS) imaging, particle image velocimetry (PIV) and hot-film anemometry. It was found that the number and ejection directions of the side jets vary with Reynolds number. Regions of large curvature at the contour of the jet column become the initiation points of the side jets. The velocity in the potential core fluctuates periodically. The movement of the high-speed fluid lump in the jet column is related to the formation of side jets. The side jet is not ejected uniformly; rather, it is discharged strongly in the braid region. The power spectra of the centerline velocity fluctuation show a complex system of subharmonic and superharmonic of a fundamental component. | |||||
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 | |||||
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: AA0064303030 | |||||
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-08-009 |