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Unsteady flow generation without moving motion -development of active flow control system based on unsteady aerodynamics-

Research Project

Project/Area Number 21K14343
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 24010:Aerospace engineering-related
Research InstitutionTohoku University

Principal Investigator

Sato Shintaro  東北大学, 工学研究科, 助教 (60869650)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsプラズマアクチュエータ / 流体制御 / 非定常空気力学 / 羽ばたき飛行 / 能動的気流制御
Outline of Research at the Start

これまでの非定常空気力学は, 飛翔生物の羽ばたき動作を模擬し, 誘起される流れ場に注目して研究が進められてきた. 本研究では, 固定翼に可動部を持たない気流制御デバイスであるプラズマアクチュエータを搭載し, 非定常的に発生する揚力の制御を試みる. 非定常揚力の本質は物体から放出される渦構造にあり, 飛翔生物は羽ばたくことで秩序的な渦構造を放出している. 本研究では, プラズマアクチュエータ素子群を翼全面に貼り付け, この渦構造を模擬することに取り組み, 羽ばたき動作をせずに羽ばたき飛行を可能にする技術の確立に挑戦する.

Outline of Final Research Achievements

Numerical and experimental studies have been carried out to induce an unsteady flow field, typically induced by the motion of the airfoil, using a plasma actuator (PA) attached to a fixed wing. Numerical simulation has shown that a similar flow field to that induced by the pitching motion of the airfoil can be reproduced by adding an electrohydrodynamic force to the surface of the fixed wing. It has been experimentally demonstrated that a similar flow structure to that obtained by numerical simulation and unsteady aerodynamic lift generation can be achieved by operating the PA to induce an ionic wind upstream (in the opposite direction to the conventional method of PA operation).

Academic Significance and Societal Importance of the Research Achievements

これまでの PA を用いた流れの制御は、剥離流れを抑制することに重きを置いていたことに対し、本研究では、剥離の促進によって流れ場を制御する手法の構築に取り組んだ。本研究課題で得られた知見を活用することで、既存の固定翼機に PA を取り付けるだけで安定な飛行が可能になるだけでなく、飛翔生物のような機動性の高い運動を可能にする技術の確立に繋げることが期待される。また、本研究課題は従来とは大きく異なる手法を用いて非定常な流れ場の制御を試みるものであり、非定常空気力学に新たな知見を与えることが期待される。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (10 results)

All 2023 2022 2021

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Ionic wind generation through coplanar discharge: A plasma actuator without exposed electrodes2023

    • Author(s)
      Sato Shintaro、Sakurai Mahoro、Ohnishi Naofumi
    • Journal Title

      AIP Advances

      Volume: 13 Issue: 6 Pages: 065001-065001

    • DOI

      10.1063/5.0150335

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Towards Development of a Plasma Actuator without External Power Supply for Unmanned Aerial Vehicle2023

    • Author(s)
      Sato Shintaro and Ohnishi Naofumi
    • Journal Title

      Journal of Evolving Space Activities

      Volume: 1 Issue: 0 Pages: n/a

    • DOI

      10.57350/jesa.57

    • ISSN
      2758-1802
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhancement of electrohydrodynamic force with AC bias voltage in three-electrode dielectric barrier discharge plasma actuators2022

    • Author(s)
      Sato Shintaro、Sakurai Mahoro、Ohnishi Naofumi
    • Journal Title

      Journal of Applied Physics

      Volume: 132 Issue: 11 Pages: 113301-113301

    • DOI

      10.1063/5.0100696

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The Effect of SiC-MOSFET Characteristics on the Performance of Dielectric Barrier Discharge Plasma Actuators with Two-Stroke Charge Cycle Operation2022

    • Author(s)
      Sato Shintaro、Yoshikawa Tomoki、Ohnishi Naofumi
    • Journal Title

      Actuators

      Volume: 11 Issue: 11 Pages: 333-333

    • DOI

      10.3390/act11110333

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Numerical simulation of atmospheric-pressure surface dielectric barrier discharge on a curved dielectric with a curvilinear mesh2022

    • Author(s)
      Tamura Hideto、Sato Shintaro、Ohnishi Naofumi
    • Journal Title

      Journal of Physics D: Applied Physics

      Volume: 56 Issue: 4 Pages: 045202-045202

    • DOI

      10.1088/1361-6463/aca61d

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] プラズマアクチュエータによる非定常揚力生成に関する実験的研究2023

    • Author(s)
      桜井まほろ、佐藤慎太郎、大西直文
    • Organizer
      日本機械学会2023年度年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ナノ秒パルス放電を用いた翼周りの剥離流れ制御に関する数値計算2023

    • Author(s)
      佐藤慎太郎、冨江響、大西直文
    • Organizer
      日本機械学会2023年度年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] プラズマアクチュエータを用いた非定常揚力生成による無人航空機飛行制御の試み2023

    • Author(s)
      桜井まほろ、佐藤慎太郎、大西直文
    • Organizer
      第61回飛行機シンポジウム
    • Related Report
      2023 Annual Research Report
  • [Presentation] Leading-edge vortex generation by plasma actuator flow control on a steady airfoil2022

    • Author(s)
      C. Y. Ho, 佐藤慎太郎, 大西直文
    • Organizer
      プラズマアクチュエータ研究会第8回シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] Numerical study on leading-edge vortex generation using plasma actuator with reversed operation2021

    • Author(s)
      C. Y. Ho, S. Sato, and N. Ohnishi
    • Organizer
      APISAT 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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