回転運動する前縁部をもつデルタ翼の空力特性
| Autor: | Azuma, Daisuke, Nakamura, Yoshiaki |
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| Jazyk: | japonština |
| Rok vydání: | 2002 |
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| Zdroj: | 航空宇宙技術研究所特別資料: 航空宇宙数値シミュレーション技術シンポジウム2001論文集 = Special Publication of National Aerospace Laboratory: Proceedings of Aerospace Numerical Simulation Symposium 2001. 53:263-266 |
| ISSN: | 0289-260X |
| Popis: | The low-speed flow for a 45 deg sweep delta wing is numerically simulated to see the effects of leading-edge rotation on aerodynamic forces. In the present study, cylindrical leading edges are employed, where the portion from x = 0.25 C to C can be rotated. The rotational speed can be varied arbitrarily. The computation is performed at an angle of attack of 20 deg and a Reynolds number of 2.0 x 10(exp 4) based on the wing root chord. The flow is fully separated from the wing surface in the case of no the leading edge rotation, so that no suction peaks due to leading edge vortices appear over the wing surface, which means that the delta wing will not have an effective vortical lift. On the other hand, in the case of rotating the leading edges, leading edge vortices can successfully by produced, resulting in a remarkable increase in lift. 資料番号: AA0032819045 レポート番号: NAL SP-53 |
| Databáze: | OpenAIRE |
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