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Flow Visualization and LDV Measurement of Turbulent Mixing Layers
https://jaxa.repo.nii.ac.jp/records/31369
https://jaxa.repo.nii.ac.jp/records/31369efdc6625-e459-41af-ba13-4e43262f3dcb
名前 / ファイル | ライセンス | アクション |
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SA0034941.pdf (1.1 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2015-03-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Flow Visualization and LDV Measurement of Turbulent Mixing Layers | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Mixing layer, Large-scale structure, Turbulence, LDV. | |||||
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 | departmental bulletin paper | |||||
著者 |
INOUE, Osamu
× INOUE, Osamu× SATO, Shun-itsu× OGUCHI, Hakuro |
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出版者 | ||||||
出版者 | 宇宙科学研究所 | |||||
出版者(英) | ||||||
出版者 | Institute of Space and Astronautical Science | |||||
書誌情報 |
en : The Institute of Space and Astronautical Science report 巻 606, p. 1-15, 発行日 1983-09 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Structures of the turbulent mixing layers are experimentally investigated with special regard to its dependence on forced initial disturbances. The mixing layers are layers produced by setting a model screen perpendicular to the freestream at a test section. Initial disturbances are forcibly imposed by equipping with various sizes of a thin rod along the edge of the model screen or at the origin of the mixing layer. Fow features are observed by visualization technique by means of the smoke-wire method. Statistical quantities are measured by laser-Doppler velocimeter. Three kinds of model geometry are dealt with; these are of one-edged type, belt type, and circular disk type. The flows produced by these model screens represent, respectively, a plane mixing layer and two-dimensional and axisymmetric jets issuing into ambient stream of higher velocity. Fow visualization results indicate that the two-dimensionality of large-scale coherent structures seems to persist in high-turbulent flows, although comparatively smaller scale vortices are superimposed over the flow field within the mixing layer. The mixing layers are in self-preserving state, at least, up to third order moments, but in no universal state. The growth rates of the mixing layer are shown to strongly depend on the initial disturbance imposed. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0285-6808 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10632072 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: SA0034941000 |