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Numerical Study of Transonic Buffet on SC(2)-0518 and OAT15A with Vortex Generators
http://hdl.handle.net/10131/0002001012
http://hdl.handle.net/10131/0002001012f8bcc0a9-877e-428d-bb11-231a208bce25
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
tsukamoto-kitamura-2024-numerical-study-of-transonic-buffet-on-sc(2)-0518-and-oat15a-with-vortex-generators.pdf (5.1 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2024-06-10 | |||||
| タイトル | ||||||
| タイトル | Numerical Study of Transonic Buffet on SC(2)-0518 and OAT15A with Vortex Generators | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 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 |
Tsukamoto, Yuta
× Tsukamoto, Yuta× Kitamura, Keiichi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Predicting the transonic buffet and its onset is important for ascertaining the performance limits of an aircraft at its critical angle of attack. Additionally, a physical understanding of the buffet suppression technique is important for preventing shock wave oscillations. In this study, we conducted zonal detached-eddy simulations to numerically investigate the effects of vortex generators (VGs) on buffet suppression and to discuss the differing flow characteristics of the SC(2)-0518 and OAT15A supercritical airfoils when the chordwise position of the VGs is varied. The results for both airfoils equipped with VGs demonstrated significant suppression of large-scale lift oscillations across all calculation steps. VGs placed at 10% of the chord (10%𝑐) from the leading edge produced higher time-averaged lift coefficients for both airfoils, with the OAT15A airfoil showing a particularly notable 2.5% improvement in lift coefficient, leading to a 0.82% increase in 𝐿/𝐷 ratio. The visualized results indicated that the interaction between the shock wave and VGs leads to variations in the separation point, depending on the VG chordwise position. This separation is affected by the aerodynamic characteristics of the airfoil shapes and the wake induced by the VGs, ultimately resulting in changes to the lift coefficient. | |||||
| 言語 | en | |||||
| bibliographic_information |
en : AIAA Journal 巻 Early Access, ページ数 14, 発行日 2024-05-12 |
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| item_2_source_id_9 | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 1533385X | |||||
| item_2_source_id_11 | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA00502751 | |||||
| item_2_relation_13 | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.2514/1.J063886 | |||||
| 出版タイプ | ||||||
| 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 | American Institute of Aeronautics and Astronautics | |||||
| item_1724376541206 | ||||||
| 助成機関名 | Japan Society for the Promotion of Science | |||||
| 言語 | en | |||||
| 研究課題番号URI | https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-21KK0258/ | |||||
| 研究課題番号 | 21KK0258 | |||||
| 研究課題番号タイプ | JGN | |||||
| 研究課題名 | 画像処理と流体力学の融合による衝撃波検知と高精度実用乱流計算 | |||||
| 言語 | ja | |||||
