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超音速後流からの音波発生機構について
https://jaxa.repo.nii.ac.jp/records/5962
https://jaxa.repo.nii.ac.jp/records/596249b32dc0-4968-423c-9757-30206c55e832
名前 / ファイル | ライセンス | アクション |
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63154018.pdf (3.0 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 | 超音速後流からの音波発生機構について | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 音波 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 超音速後流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 計算流体力学 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ナビエ・ストークス方程式 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 時間発展 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | モーダルエネルギー | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 圧力分布 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 速度分布 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ケルビン-ヘルムホルツ不安定 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 音場 | |||||
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 | 渦構造 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 縦渦 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | sound wave | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | supersonic wake | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | computational fluid dynamics | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Navier-Stokes equation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | time development | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | modal energy | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | pressure distribution | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | velocity distribution | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Kelvin-Helmholtz instability | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | sound field | |||||
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 structure | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | streamwise vortex | |||||
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 | Acoustic wave radiation in a supersonic wake | |||||
著者 |
滝口, 貴
× 滝口, 貴× 前川, 博× 渡辺, 大輔× 松尾, 裕一× Takiguchi, Takashi× Maekawa, Hiroshi× Watanabe, Daisuke× Matsuo, Yuichi |
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著者所属 | ||||||
広島大学 大学院 | ||||||
著者所属 | ||||||
広島大学 大学院 | ||||||
著者所属 | ||||||
広島大学 大学院 | ||||||
著者所属 | ||||||
宇宙航空研究開発機構 | ||||||
著者所属(英) | ||||||
en | ||||||
Hiroshima University Graduate School | ||||||
著者所属(英) | ||||||
en | ||||||
Hiroshima University Graduate School | ||||||
著者所属(英) | ||||||
en | ||||||
Hiroshima University Graduate School | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構 | |||||
出版者(英) | ||||||
出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||
書誌情報 |
宇宙航空研究開発機構特別資料: 航空宇宙数値シミュレーション技術シンポジウム2006論文集 en : JAXA Special Publication: Proceedings of Aerospace Numerical Simulation Symposium 2006 巻 JAXA-SP-06-010, p. 95-100, 発行日 2006-12-01 |
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抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | A direct numerical simulation of a supersonic wake undergoing transition to turbulence has been performed. The compressible Navier-Stokes are solved to study the acoustic generation mechanism for a Mach 2 wake. High-order upwind-biased compact schemes are used for spatial derivatives and a fourth-order Runge-Kutta scheme for time advancement. Navier-Stokes characteristic boundary conditions are employed in the vertical direction and periodic boundary conditions in the streamwise and spanwise directions for a time-developing DNS. The laminar wake was forced with a combination of the 2-D most unstable mode and a pair of oblique subharmonic unstable modes, which were obtained from linear stability theory for the viscous compressible equations. Forcing with a pair of oblique subharmonic modes yields streamwise/vertical counter rotating vortices in the saddle region of the plane wake. As streamwise/vertical counter rotating vortices evolve outside, their self-induction causes inclined braidlike structures to form in the wake, which are similar to the observations in the experimental supersonic flat plate wake transition. Acoustic waves of the plane wake are generated when two-dimensional rollup structures appear and rotate in a coherent fashion in the wake. 3-D elliptical structures play an important role for sound generation in the plane wake. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1349-113X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11984031 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA0063154018 | |||||
レポート番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | レポート番号: JAXA-SP-06-010 |