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アイテム
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縦渦の変曲点不安定性と超音速混合促進への応用
https://jaxa.repo.nii.ac.jp/records/36947
https://jaxa.repo.nii.ac.jp/records/3694733ae23d8-f73a-411d-bfaf-54bcf3091ec4
名前 / ファイル | ライセンス | アクション |
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nalsp0033016.pdf (1.6 MB)
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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 | 縦渦の変曲点不安定性と超音速混合促進への応用 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 乱流制御 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 超音速混合促進 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 縦渦 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 縦渦不安定性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | スクラムジェットエンジン | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦流構造 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦度分布 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 軸対称環状渦 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 変曲点不安定性 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | turbulence control | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | supersonic mixing enhancement | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | streamwise vortex | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | streamwise vortex instability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | scramjet engine | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vortical flow structure | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vorticity distribution | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | axisymmetric annular vortex | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | inflectional instability | |||||
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 | Inflectional instability of streamwise vortex and its application to supersonic mixing enhancement | |||||
著者 |
西岡, 通男
× 西岡, 通男× 松岡, 光大× 比江島, 俊彦× Nishioka, Michio× Matsuoka, Mitsuhiro× Hiejima, Toshihiko |
|||||
著者所属 | ||||||
大阪府立大学 工学部 | ||||||
著者所属 | ||||||
大阪府立大学 工学部 | ||||||
著者所属 | ||||||
大阪府立大学 工学部 | ||||||
著者所属(英) | ||||||
en | ||||||
Osaka Prefecture University College of Engineering | ||||||
著者所属(英) | ||||||
en | ||||||
Osaka Prefecture University College of Engineering | ||||||
著者所属(英) | ||||||
en | ||||||
Osaka Prefecture University College of Engineering | ||||||
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 en : Special Publication of National Aerospace Laboratory 巻 33, p. 69-74, 発行日 1996-09 |
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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 | 28-29 Sep. 1995 (17th). 28-29 Mar. 1996 (18th) | |||||
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 | 28-29 Sep. 1995 (17th). 28-29 Mar. 1996 (18th) | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | この研究の動機は、圧縮性の影響を著しく受けないでエンジンの重要な技術的必要条件である超音速混合を促進するような渦の流れ構造を見出す研究を通して、スクラムジェットエンジンの開発に寄与することである。ここに提案する候補は、渦度の環状および軸対称分布により特徴づけられる、あるタイプの縦渦である。これは、このような縦渦では低速度混合層中と同様な変曲点不安定性を受けるためである。変曲点不安定性を明らかにするため、非粘性線形安定性解析と直接数値シミュレーションを行った。結果は、さまざまな規模の離散渦が急成長および干渉によって複雑な流れを発達させることを示し、その縦渦の超音速混合促進手段としての強力な可能性を実証した。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The motivation of the present study is to contribute to the development of scramjet engines through the research of finding such vortical flow structures that are not much affected by compressibility effects and can thus work to enhance the supersonic mixing, an important technical prerequisite for the engine. A candidate proposed here is a certain type of streamwise vortex characterized by an annular and axisymmetric distribution of vorticity. This is because it may undergo 'inflectional instability' like in low-speed mixing layers. The inviscid linear stability analysis and direct numerical simulations have been made to clarify the 'inflectional instability'. The results demonstrates its powerful potential as a means of supersonic mixing enhancement, showing the development of complex flow driven by rapidly growing and interacting discrete vortices of various scales. | |||||
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: AA0000867016 | |||||
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-33 |