Improvement of Aerodynamic Characteristics of an Airfoli by Surface Oscillation

通过表面振荡改善机翼的气动特性

• 批准号: 04805009
• 负责人: KOBAYAKAWA Makoto
• 金额: $ 1.22万
• 依托单位: Ryukoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04805009/
• 关键词: Airfoil; Flow control; Boundaly layr; CFD; Wind tunnel test; 翼の空力特性; 境界層制御; 失速特性; 粘性抵抗

This research presents a new method of high lift device of wing. Fundamental idea of this method is to control flow pattern on the wing surface by its small oscillation at high angle of attack. Thisoscillation energy is added to the flow, and, asa result, transition from laminar boundary layr to turbulent one is accelerated. The effect on the whole characteristics of the wing is expected as that a stall angle of attack is increased and, consequently, the maximum lift is also incleased. This effect is verified by both wind tunnel test and numerical simulation.

本研究提出了一种机翼​​高升力装置的新方法。该方法的基本思想是通过大迎角时的小幅振荡来控制机翼表面的流型。这种振荡能量被添加到流动中，因此，加速了从层流边界层到湍流边界层的转变。预计会对机翼的整体特性产生影响，因为失速迎角增加，因此最大升力也增加。这一效果通过风洞试验和数值模拟得到了验证。

项目成果

小早川命他: "表面を微小振動させることによる翼の空力特性の向上" 日本航空宇宙学会第23回年会講演論文集. 118-120 (1992)

Mikoto Kobayakawa 等人：“通过微振动表面改善机翼的空气动力特性”日本航空学会第 23 届年会记录 118-120 (1992)。

Kobayakawa,Makoto et al: "Airfoil Flow Control at High Angle of Attack by Surface Oscillation" Proc.of IUTAM Symposium of Aerodynamics on High Angle of Attack. 265-273 (1992)

Kobayakawa，Makoto 等人：“表面振荡高攻角下的翼型流动控制”Proc.of IUTAM 高攻角空气动力学研讨会。

Kobayakawa, Makoto et al.: "Improvement of Aerodynamic Characteristics of an Aiefoil by Surface Oscillation." Proc.of 23rd Annual Meeting of Japan Soc.of Aero- and Astronautical Aci.118-120 (1992)

Kobayakawa、Makoto 等人：“通过表面振荡改善翼型的空气动力特性。”

Kobayakawa, Makoto: "Airfoil Flow Control at High Angle of Attack by Surface Oscillation." Proc.of IUTAM Symposium of Aerodynamics on High Angle of Attack. 265-273 (1992)

Kobayakawa，Makoto：“表面振荡高迎角下的翼型流动控制。”

Kobayakawa,Makoto: "Airflow Control at High Angle of Attals by Sunface Oscillation" Proc.IUTAM Symposium of Aerodynamics on High Angle of Attack. 265-273 (1992)

Kobayakawa，Makoto：“通过日面振荡进行高阿塔尔斯角气流控制”Proc.IUTAM 高攻角空气动力学研讨会。