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Leading-Edge separation behaviors in SA RANS and SA-based DDES: Simple modifications for improved prediction
http://hdl.handle.net/10131/00014949
http://hdl.handle.net/10131/00014949a1a91fa1-b555-4988-b0b0-9db195110f69
| 名前 / ファイル | ライセンス | アクション |
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1-s2.0-S0045793023000397-main.pdf (3.5 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||
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| 公開日 | 2023-02-07 | |||||||||||||||
| タイトル | ||||||||||||||||
| タイトル | Leading-Edge separation behaviors in SA RANS and SA-based DDES: Simple modifications for improved prediction | |||||||||||||||
| 言語 | en | |||||||||||||||
| 言語 | ||||||||||||||||
| 言語 | eng | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | DDES; RANS; Spalart-Allmaras; HR-SLAU2; Buffet; Leading-Edge Separation | |||||||||||||||
| 資源タイプ | ||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||
| 資源タイプ | journal article | |||||||||||||||
| アクセス権 | ||||||||||||||||
| アクセス権 | open access | |||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||
| 著者 |
Kitamura, K.
× Kitamura, K.× Takagi, Y.
× Harada, T.
× Yasumura, Y.
× Kanamori, M.
× Hashimoto, A.
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| 抄録 | ||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||
| 内容記述 | In this study, delayed detached-eddy simulations (DDESs) based on the Spalart-Allmaras turbulence model are investigated for separation flows. Three simple modifications are considered: the Reynolds-averaged Navier-- Stokes (RANS) turbulence model coefficient, Crot, is calibrated to achieve a better leading-edge separation pre-diction in DDES; the large-eddy simulation (LES) coefficient, CDES, is assessed to obtain better dissipation control in DDES; and dirty-cell treatments in three-dimensional unstructured grids are conducted for a smooth LES/ RANS transition. Numerical results confirm the effects of the three aforementioned steps, such as the repro-ducibility of the measured pressure distribution over the main wing in unsteady turbulence simulations of low -speed buffet around the NASA Common Research Model. Thus, these modifications will potentially serve as good alternatives, without major programming efforts, to the conventional approaches for practitioners. | |||||||||||||||
| 言語 | en | |||||||||||||||
| 書誌情報 |
en : Computers & Fluids 巻 255, ページ数 13, 発行日 2023-02-17 |
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| 収録物識別子タイプ | PISSN | |||||||||||||||
| 収録物識別子 | 00457930 | |||||||||||||||
| DOI | ||||||||||||||||
| 関連タイプ | isIdenticalTo | |||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.compfluid.2023.105814 | |||||||||||||||
| 著者版フラグ | ||||||||||||||||
| 出版タイプ | VoR | |||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||
| 出版者 | ||||||||||||||||
| 出版者 | Pergamon-Elsevier Science Ltd | |||||||||||||||
| 言語 | en | |||||||||||||||
