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非線型層流安定理論と数値計算-第二報 平行流における有限攪乱理論と二次元Poiseuille流れへの適用-
https://jaxa.repo.nii.ac.jp/records/44578
https://jaxa.repo.nii.ac.jp/records/44578b2c74dea-7c88-44f1-93ef-198d9d639cd8
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
naltr00332.pdf (1.2 MB)
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| Item type | テクニカルレポート / Technical Report(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2015-03-26 | |||||||||
| タイトル | ||||||||||
| タイトル | 非線型層流安定理論と数値計算-第二報 平行流における有限攪乱理論と二次元Poiseuille流れへの適用- | |||||||||
| 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_18gh | |||||||||
| 資源タイプ | technical report | |||||||||
| その他のタイトル（英） | ||||||||||
| その他のタイトル | A Non-linear Hydrodynamic Stability Theory with Numerical Calculations -Part 2. Theoretical Analysis and the Numerical Results for Plane Poiseuille Flow- | |||||||||
| 著者 |
伊藤, 信毅
× 伊藤, 信毅
× ITOH, Nobutake
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| 著者所属 | ||||||||||
| 航空宇宙技術研究所空気力学第二部 | ||||||||||
| 著者所属（英） | ||||||||||
| en | ||||||||||
| Second Aerodynamics Division, National Aerospace Laboratory(NAL) | ||||||||||
| 出版者 | ||||||||||
| 出版者 | 航空宇宙技術研究所 | |||||||||
| 出版者（英） | ||||||||||
| 出版者 | National Aerospace Laboratory(NAL) | |||||||||
| 書誌情報 |
航空宇宙技術研究所報告 en : Technical Report of National Aerospace Laboratory TR-332 巻 332, p. 15, 発行日 1973-07 |
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| 抄録（英） | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | A method of analysis for studying the development of two-dimensional, finite disturbances leading to transition from laminar to turbulent flow is presented. The expansion method for analysis of the non-linear basic equation constitutes an extension and modification of the Stuart-Watson approach. Three points are considered essential; (i) the fundamental disturbance is assumed to be a spatially-growing wave instead of a temporally-growing one; (ii) the solution of the equation for mean-flow distortion consists of both an eigenfunction componenet with an arbitrary coefficient and a particular solution; (iii) the damping of the first approximation to the fundamental wave remains unknown through the formulation. These modifications lead to a relation between the amplitude of the fundamental wave and the magnitude of the mean-flow distortion, which propvides a lucid explanation of the non-linear mechanism of disturbances. It is also found that the damping of the fundamental wave does not vary linearly with the square of the amplitude but varies according to a more complicated law. The method is applied to plane Poiseuille flow and the numerical results are obtained for a wide range of frequency and Reynolds number. | |||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0389-4010 | |||||||||
| 資料番号 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | 資料番号: NALTR0332000 | |||||||||
| レポート番号 | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | レポート番号: NAL TR-332 | |||||||||
