WEKO3
アイテム
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メニーブロックソルバーによるフレキシブルな空間高次精度 CFD
https://jaxa.repo.nii.ac.jp/records/3258
https://jaxa.repo.nii.ac.jp/records/3258c16ff779-7a66-4157-8186-40a20c9386fd
名前 / ファイル | ライセンス | アクション |
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AA1730011024.pdf (2.4 MB)
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Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2017-12-28 | |||||
タイトル | ||||||
タイトル | メニーブロックソルバーによるフレキシブルな空間高次精度 CFD | |||||
言語 | ||||||
言語 | jpn | |||||
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 | Development of a Many-Block Solver for Geometrically Flexible and High-order Accurate CFD | |||||
著者 |
松山, 新吾
× 松山, 新吾× Matsuyama, Shingo |
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著者所属 | ||||||
宇宙航空研究開発機構(JAXA) | ||||||
著者所属(英) | ||||||
en | ||||||
Japan Aerospace Exploration Agency (JAXA) | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構(JAXA) | |||||
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: 第49回流体力学講演会/第35回航空宇宙数値シミュレーション技術シンポジウム論文集 en : JAXA Special Publication: Proceedings of the 49th Fluid Dynamics Conference / the 35th Aerospace Numerical Simulation Symposium 巻 JAXA-SP-17-004, p. 153-158, 発行日 2017-12-27 |
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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 | 第49回流体力学講演会/第35回航空宇宙数値シミュレーション技術シンポジウム (2017年6月28日-30日. 国立オリンピック記念青少年総合センター), 渋谷区, 東京 | |||||
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 | 49th Fluid Dynamics Conference /the 35th Aerospace Numerical Simulation Symposium (June 28-30, 2017. National Olympics Memorial Youth Center), Shibuya-ku, Tokyo, Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | A many-block solver is developed for geometrically flexible and high-order accurate CFD method. To achieve an N-th order spatial accurate scheme in the many-block solver, hexahedral parent cells are sub-divided into structured N to the third power cells. A finite volume method in a similar manner with structured solver is applied to solve the governing equations in the sub-divided cells. High-order spatial accuracy is achieved by interpolating the primitive variables at the cell interfaces of sub-divided cells with a fifth-order polynomial. The developed fifth-order many-block solver is tested for the Taylor-Green vortex problem at Re = 1600. The time evolutions of kinetic energy, kinetic energy dissipation rate, enstrophy field, and vorticity contours obtained by the many-block solver on a fine mesh with (100×5)(exp 3) cells are in excellent agreement with a reference solution obtained using a pseudo-spectral method. The computational speed and cost of many-block solver are evaluated on the JAXA supercomputer system. The many-block solver achieves a computational speed at 2.2 Tflops on 63 nodes (2016 cores) which is approximately 3.3 percent of the system theoretical peak performance. The computational time and memory usage of many-block solver are approximately 1.4 and 3.3 times higher, respectively, than those of a conventional structured multi-block solver. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSNONLINE | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2433-2232 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA1730011024 | |||||
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-17-004 |