スペクトル法による平面Poiseuille流遷移の数値シミュレーション

Material type: 文書・図像類

Author: 山本, 稀義ほか

Publisher: 航空宇宙技術研究所

Publication date: 1987-11

Material Format: Digital

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Note (General)：: Direct numerical simulation of the transition process from laminar to tubulent plane Poiseuille flow is carried out using a new computing method deriv...

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Material Type: 文書・図像類
Title: スペクトル法による平面Poiseuille流遷移の数値シミュレーション
Author/Editor: 山本, 稀義
細川, 巌
Yamamoto, Kiyoshi
Hosokawa, Iwao
Author Heading: 山本, 稀義
細川, 巌
Yamamoto, Kiyoshi
Hosokawa, Iwao
Publication, Distribution, etc.: 航空宇宙技術研究所
Publication Date: 1987-11
Publication Date (W3CDTF): 1987-11
Alternative Title: Numerical Simulation of Transition to Turbulence in Plane Poiseuille Flow by a Spectral Method
Periodical title: 航空宇宙技術研究所特別資料 = Special Publication of National Aerospace Laboratory SP-8
No. or year of volume/issue: 8
Volume: 8
Pages: 217-224
ISSN (Periodical Title): ISSN : 0289-260X
Text Language Code: jpn
Target Audience: 一般
Note (General): Direct numerical simulation of the transition process from laminar to tubulent plane Poiseuille flow is carried out using a new computing method derived from the Fourier spectral method. The subcritical nonlinear instability for a three-dimensional small disturbance, which is induced by the basic flow plus the two-dimensional finite amplitude T-S wave, is investigated at a Reynolds number, 5000. The two distinct secondary instability mechanisms, the peak-valley splitting and the resonance interaction between T-S wave and a pair of subharmonic oblique waves, are obtained depending on a slight difference being in the initially given three-dimensional small disturbances. The mechanisms correspond to the experimental observation in the boundary layer on a flat plate. The transition is accelerated by the growing three-dimensional disturbances and the turbulent flow obtained agrees well with the experimental observation.
資料番号: NALSP0008031
レポート番号: NAL SP-8
Source: https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43284&item_no=1&attribute_id=31&file_no=1
https://jaxa.repo.nii.ac.jp/?action=repository_action_common_download&item_id=43284&item_no=1&attribute_id=31&file_no=1
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 宇宙航空研究開発機構 : 宇宙航空研究開発機構リポジトリ