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3次元複雑形状周りのRANS 解析へ向けた直交格子ソルバUTCart の機能拡張
https://jaxa.repo.nii.ac.jp/records/3257
https://jaxa.repo.nii.ac.jp/records/3257099c800a-14b3-459d-a78f-ec3c55c27b6a
名前 / ファイル | ライセンス | アクション |
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AA1730011023.pdf (3.2 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 | 3次元複雑形状周りのRANS 解析へ向けた直交格子ソルバUTCart の機能拡張 | |||||
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 | Extension of the Cartesian Flow Solver UTCart for RANS Simulations around 3D Complex Geometries | |||||
著者 |
玉置, 義治
× 玉置, 義治× 今村, 太郎× Tamaki, Yoshiharu× Imamura, Taro |
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著者所属 | ||||||
東京大学 | ||||||
著者所属 | ||||||
東京大学 | ||||||
著者所属(英) | ||||||
en | ||||||
The University of Tokyo | ||||||
著者所属(英) | ||||||
en | ||||||
The University of Tokyo | ||||||
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. 147-152, 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 | To simulate flows around complex geometries, an improvement on the Cartesian-grid-based flow solver UTCart is proposed, which enables UTCart to handle a grid with variable cell sizes on the wall. UTCart uses an immersed boundary method with a wall function for the wall boundary condition in turbulent flow simulations. The boundary condition requires a cutoff distance that is defined as the grid size assigned at the nearest wall multiplied by a constant. A large computational effort was needed to determine the cutoff distance because every cell in the computational domain must detect the nearest wall. Thus, a new method based on an advection equation to calculate the cutoff distance is developed. Using UTCart, turbulent flows around the JAXA high-lift configuration standard model are simulated. The surface features, including the small gaps between the wing and the flap, are well resolved in the generated grid that has approximately 110 million cells. In the computational results, the lift coefficients and the surface pressure coefficients show a good agreement with the experimental data, especially at the low angles of attack. | |||||
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: AA1730011023 | |||||
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 |