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LESにおけるダイナミック非平衡壁面モデルの提案:高レイノルズ数剥離流れの予測
https://jaxa.repo.nii.ac.jp/records/4242
https://jaxa.repo.nii.ac.jp/records/42420d33787a-89e4-4787-95b9-c3d59a5541ce
名前 / ファイル | ライセンス | アクション |
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61958002.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 | ||||||
タイトル | LESにおけるダイナミック非平衡壁面モデルの提案:高レイノルズ数剥離流れの予測 | |||||
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 | Dynamic non-equilibrium wall-model for LES: predicting separated flows at high Reynolds number | |||||
著者 |
河合, 宗司
× 河合, 宗司× Kawai, Soshi |
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著者所属 | ||||||
宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS) | ||||||
著者所属(英) | ||||||
en | ||||||
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS) | ||||||
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 en : JAXA Special Publication: Proceedings of 44th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2012 巻 JAXA-SP-12-010, p. 7-12, 発行日 2013-03-29 |
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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44回流体力学講演会/航空宇宙数値シミュレーション技術シンポジウム2012 (2012年7月5日-6日. 富山国際会議場大手町フォーラム), 富山市, 富山県 | |||||
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 | 44th Fluid Dynamics Conference / Aerospace Numerical Simulation Symposium 2012 (July 5-6, 2012. Toyama International Conference Center), Toyama Japan | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | We propose a simple yet efficient dynamic non-equilibrium wall-modeling for large-eddy simulation of separated flows at very high Reynolds numbers. The proposed wall model models wall shear stress directly and thus is different from popular hybrid LES/RANS and DES approaches. The model stems directly from considerations of how turbulence length scales behave in the logarithmic layer, and thus in other words the method is based solidly on physical reasoning. Supersonic turbulent boundary layers on a flat plate with and without separation at very high Reynolds number (Reθ = 50, 000) are simulated and compared to the theory and experimental data. The resulting method is shown to accurately predict both the equilibrium and non-equilibrium separated boundary layers, with both realistic instantaneous fields and accurate statistics. | |||||
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 | |||||
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: AA0061958002 | |||||
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-12-010 |