| 研究課題/領域番号 |
20K14953
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| 研究種目 |
若手研究
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| 配分区分 | 基金 |
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| 審査区分 |
小区分24010:航空宇宙工学関連
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| 研究機関 | 国立研究開発法人宇宙航空研究開発機構 |
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研究代表者 |
Andrea Sansica 国立研究開発法人宇宙航空研究開発機構, 航空技術部門, 研究開発員 (80867797)
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| 研究期間 (年度) |
2020-04-01 – 2025-03-31
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| 研究課題ステータス |
交付 (2023年度)
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| 配分額 *注記 |
3,640千円 (直接経費: 2,800千円、間接経費: 840千円)
2021年度: 1,170千円 (直接経費: 900千円、間接経費: 270千円)
2020年度: 2,470千円 (直接経費: 1,900千円、間接経費: 570千円)
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| キーワード | Transonic buffet / Shock-oscillations / Bio-mimetic control / Instability / bio-mimetic control / shock-oscillations / instability / transonic flows / Transonic buffet control / Global stability / Machine-learning / System identification / Bio-mimetic flow control / Buffet onset prediction / Buffet control / Transonic Buffet / Control / Bio-mimetic / Global Stability / Machine Learning |
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| 研究開始時の研究の概要 |
Transonic buffet consists of shock-wave oscillations that occur on aircraft wings and cause dangerous structural vibrations. By mimicking the humpback whale wavy fins, this research investigates the effectiveness of new wing configurations to suppress buffet and enhance flight quality and safety.
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| 研究実績の概要 |
Under certain combinations of speed and incidence, commercial aircraft can experience transonic buffet. Buffet consists of periodic self-sustain loads which cause wing vibrations, consequently reducing the aircraft performance, maneuverability and safety. The objective of this work is to apply bio-mimetic wings characterized by wavy leading- and trailing edges to control buffet. To further investigate the mechanisms of buffet, a numerical method based on global stability has been validated against high-fidelity simulations and applied to full-aircraft configurations. Different characteristics of wavy leading- and trailing-edges have been studied for both periodic and finite wings. When wavy leading-edges were used, transonic buffet was weakened and the related unsteady loads reduced.
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| 現在までの達成度 (区分) |
現在までの達成度 (区分)
3: やや遅れている
理由
Some delay occurred due to appointment of the PI to many managerial tasks. The project is however expected to be completed by the end of FY24.
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| 今後の研究の推進方策 |
Some additional simulations for finite wings will be performed to further characterize the control and weakening of transonic buffet.
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