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カルマン渦列の周波数決定機構
https://jaxa.repo.nii.ac.jp/records/37753
https://jaxa.repo.nii.ac.jp/records/377538d680689-2a09-4345-8911-2ce1b94d0769
名前 / ファイル | ライセンス | アクション |
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nalsp0021016.pdf (320.6 kB)
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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 | カルマン渦列の周波数決定機構 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | カルマン渦列 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦形式 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦放出周波数 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 周波数決定機構 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 後流不安定性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 絶対不安定性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流体力学的不安定性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 剪断層巻き上がり | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 擾乱増幅 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 擾乱成長機構 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流れ数値シミュレーション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 数値的安定性解析 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Karman vortex street | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vortex formation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | votrex shedding frequency | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | frequency selection mechanism | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | wake instability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | absolute instability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | hydrodyanamic instability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | shear layer roll up | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | disturbance amplification | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | disturbance growth mechanism | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | numerical flow simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | numerical stability analysis | |||||
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 | Mechanism of frequency-selection of Karman vortex streets | |||||
著者 |
浅井, 雅人
× 浅井, 雅人× Asai, Masahito |
|||||
著者所属 | ||||||
都立科学技術大学 | ||||||
著者所属(英) | ||||||
en | ||||||
Tokyo Metropolitan Institute of Technology | ||||||
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特別資料:「境界層遷移の解明と制御」研究会講演論文集(第11回・第12回) en : Proceedings of the 11th and 12th NAL Workshop on 'Investigation and Control of Boundary-Layer Transition'. Special Publication of National Aerospace Laboratory 巻 21, p. 65-68, 発行日 1993-11 |
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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 | 航空宇宙技術研究所 28-29 Sep. 1992. 25-26 Apr.1993 東京 日本 | |||||
会議概要(会議名, 開催地, 会期, 主催者等)(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | National Aerospace Laboratory 28-29 Sep. 1992. 25-26 Apr.1993 Tokyo Japan | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | カルマン渦列の周波数決定機構を明らかにするため、平板後流について渦列の形成につながる擾乱の時間的増幅(絶対不安定)を数値的に調べた。局所的不安定性を知るため後速度成分についての安定性解析をも実施した。初期段階では、成長する擾乱の周波数は初期における定常後流に関する絶対不安定擾乱のそれと一致するが、後流剪断層が渦列に巻き上がるにつれてそれは大きくなる。そのような周波数の増加は、近傍後流の絶対不安定性に変化によっても説明できる。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | In order to clarify the mechanism of frequency selection of Karman vortex streets, the temporal (absolute) disturbance growth ledging to the formation of vortex streets is investigated numerically for the wake behind a plate. Stability analysis is also made for the wake velocity distributions to obtain their local instability characteristics. In the initial stage, the frequency of growing disturbance agrees well with that of absolutely unstable disturbance for the (initial) steady wake, but it increases as the wake shera-layers roll up to the vortex streets. Such increase of the frequency is also explained by the alteration n of the absolute instability characteristics of the near-wake. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0289-260X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN10097345 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0004170016 | |||||
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 SP-21 |