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Simulation of a flow around a bluff body using Cartesian coordinates
https://jaxa.repo.nii.ac.jp/records/5950
https://jaxa.repo.nii.ac.jp/records/5950b33efb1a-d9a7-4a44-bbef-edc9c851918d
名前 / ファイル | ライセンス | アクション |
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63154006.pdf (1.3 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 | ||||||
言語 | en | |||||
タイトル | Simulation of a flow around a bluff body using Cartesian coordinates | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流れの可視化 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ブラフボディ | |||||
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 | ナビエ・ストークス方程式 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ポアソン方程式 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 計算機シミュレーション | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 直交座標 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 負の粘性 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 境界層速度比 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | blvr | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 流線 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 渦度 | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | 境界層 | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | flow visualization | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | bluff body | |||||
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 | Navier-Stokes equation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Poisson equation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | computerized simulation | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Cartesian coordinate | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | negative viscosity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | boundary layer velocity ratio | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | blvr | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | streamline | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | vorticity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | boundary layer | |||||
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 | |||||
著者 |
桑原, 邦郎
× 桑原, 邦郎× 小紫, 誠子× Bethancourt, Angel× Kuwahara, Kunio× Komurasaki, Satoko× Bethancourt, Angel |
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著者所属 | ||||||
計算流体力学研究所 | ||||||
著者所属 | ||||||
日本大学 理工学部 数学科 | ||||||
著者所属 | ||||||
計算流体力学研究所 | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Computational Fluid Dynamics | ||||||
著者所属(英) | ||||||
en | ||||||
Nihon University Department of Mathematics, College of Science and Technology | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Computational Fluid Dynamics | ||||||
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. 25-28, 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 | This paper introduces a computational technique to compensate for the added numerical diffusion that is generated when uniform Cartesian coordinates are used to describe the flow around bluff bodies. Because of the staircase-like representation of the surface object, it was found that the added surface 'roughness' causes larger than expected separation region for some test cases (flow around a sphere, and flow around a cylindrical body). In order to control the velocity profile in the boundary layer, a new parameter blvr (boundary layer velocity ratio) is define, and it is used to set the negative value of the viscosity along the surface. Extensive visualizations of flow past bluff bodies are performed using the present technique. Numerical solutions of the governing Navier-Stokes equations are carried out in a uniform Cartesian coordinates using a multi-directional finite difference scheme with a third-order upwinding. No explicit turbulence model is incorporated into the model, and the dependence of the solution on the blvr parameter is investigated. | |||||
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: AA0063154006 | |||||
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 |