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正弦的脈動流を受ける角柱放出渦のLock-in
http://hdl.handle.net/10458/297
http://hdl.handle.net/10458/29705211f4e-4a8a-4abd-8fba-0393dc39fc9b
名前 / ファイル | ライセンス | アクション |
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KJ00002428218.pdf (422.8 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-06-28 | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | 正弦的脈動流を受ける角柱放出渦のLock-in | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Vortex Shedding from Rectangular Cylinders in Sinusoidal Pulsatin Flow | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Wind tunnel of multi-fan type, Rectangular cylinders, Karman vortex shedding, Base pressure, Lock-in | |||||
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 | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | セイゲンテキ ミャクドウリュウ オ ウケル カクチュウ ホウシュツ ウズ ノ Lock-in | |||||
著者 |
小園, 茂平
× 小園, 茂平× 和田, 一洋× 和田, 一洋 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | This paper describes the lock-in of the vortex shedding from a rectangular cylinder in sinusoidal pulsating flow. The side ratios d/h of the models used for measurements are varied over the range 0.6-2.5. Here, d is the depth and h is the height of the cylinder. Sinusoidal pulsating flow is created using a wind tunnel of multi-fun type, where the forced frequency is varied from 0 to 4.6Hz. Dimensionless amplitude ratio ε is set to 0.05, where ε=ΔU/(2πfd) and the pulsating component is expressed by ΔU sin2πft. The vortex shedding frequency tends to the line f=2fs, and eventually coincides with that line, meaning that lock-in commences somewhat prior to f/fso=2, where f is the frequency of pulsating flow, fs the vortex shedding frequency, and fso the natural vortex shedding frequency. For this range, the base pressure decreases significantly. |
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言語 | en | |||||
書誌情報 |
ja : 宮崎大学工学部紀要 en : Memoirs of Faculty of Engineering, University of Miyazaki 巻 33, p. 23-28, 発行日 2004-10 |
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出版者 | ||||||
言語 | ja | |||||
出版者 | 宮崎大学工学部 | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Faculty of Engineering, University of Miyazaki | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05404924 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA00732558 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |