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一様等方性圧縮性乱流の位相幾何学的構造
https://jaxa.repo.nii.ac.jp/records/36943
https://jaxa.repo.nii.ac.jp/records/36943bd1c3705-e10b-4d30-9a6a-c0d890dcbe72
名前 / ファイル | ライセンス | アクション |
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nalsp0033012.pdf (245.6 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 | 一様等方性圧縮性乱流の位相幾何学的構造 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 圧縮性乱流 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 臨界点理論 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 散逸 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流体運動 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流れパターン | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 位相幾何学 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 解軌跡 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 瞬時流線 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | エンストロフィー | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 不安定結節鞍状点 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 安定渦状点 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 数値シミュレーション | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | compressible turbulent flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | critical point theory | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | dissipation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | fluid motion | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | flow pattern | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | topology | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | solution trajectory | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | instantaneous streamline | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | enstrophy | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | unstable node saddle point | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | stable focal point | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | numerical simulation | |||||
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 | A study of the geometry of flow patterns in compressible isotropic turbulence | |||||
著者 |
桧山, 貴志
× 桧山, 貴志× 前川, 博× 松尾, 裕一× Hiyama, Takashi× Maekawa, Hiroshi× Matsuo, Yuichi |
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著者所属 | ||||||
電気通信大学 | ||||||
著者所属 | ||||||
電気通信大学 | ||||||
著者所属 | ||||||
航空宇宙技術研究所 | ||||||
著者所属(英) | ||||||
en | ||||||
University of Electro-Communications | ||||||
著者所属(英) | ||||||
en | ||||||
University of Electro-Communications | ||||||
著者所属(英) | ||||||
en | ||||||
National Aerospace Laboratory | ||||||
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. 53-55, 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 | 3次元臨界点理論を用いて、M(sub t)=0.6での一様等方性圧縮性減衰乱流の数値シミュレーションにおける流れパターンの幾何学を研究した。3つの一次線形微分方程式による解軌跡を用いて、瞬間的な流線で定義した基本的な3次元流れパターンを分類した。高運動エネルギー散逸と高エンストロフィー、あるいはそのいずれかの特徴をなす流体運動は特に興味がある。不安定結節鞍状点および安定伸張渦状点を示す3次元歪率トポロジーによって、高散逸領域における流体運動が特徴ずけられることが分かった。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The geometry of flow patterns in a numerically simulated compressible isotropic decaying turbulent flow at M(sub t) = 0.6 was studied using three-dimensional critical point theory. The solution trajectories for three first-order linear differential equations are used to classify the elementary three-dimensional flow patterns defined by instantaneous streamlines. Fluid motions characterized by high rates of kinetic energy dissipation and/or high enstrophy are of particular interest. It is found that motions corresponding to high rates of dissipation are characterized by a 3-D rate-of-strain topology which are of the types saddle-saddle-unstable-node and stable-focus-stretching. | |||||
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: AA0000867012 | |||||
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 |