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Development of an Air Curtain System Utilizing the Aerodynamic Characteristics of the Camtail

Research Project

Project/Area Number 21K14074
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 19010:Fluid engineering-related
Research InstitutionNagoya University

Principal Investigator

Takamure Kotaro  名古屋大学, 未来材料・システム研究所, 助教 (80847335)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsエアカーテン / NACA翼 / 切断翼 / カムテール / コーダトロンカ / ポテンシャルコア / ブースト効果 / 直接数値計算
Outline of Research at the Start

本研究の目的は,空気壁の効果が長距離にわたって持続するエアカーテンを開発することである.一般的なエアカーテンは,ノズルから空気が吹き出した直後からカーテン気流は大きく拡散するため,空気壁の効果が急激に弱まる.この問題を解決するため,本研究ではダクトの内部に,後縁が切断された形状の翼(切断翼)を挿入する.これにより,切断翼に沿って流れる気流は,翼の後方で流れが合流するという特性(カムテールの空力特性)を活用でき,エアカーテンの拡散を効果的に抑制できることが期待される.本研究では,実験と数値シミュレーションを用いて,エアカーテンをより長距離にわたって持続させるための翼形状を明らかにする.

Outline of Final Research Achievements

The study aimed to enhance the persistence and blocking effect of an air curtain by inserting a blade with a cut-off trailing edge into a slit nozzle. The NACA airfoil was used for the blade shape in this research. When the blade was cut off in the range of 20-35% from the trailing edge, the flow convergence effect was observed, leading to an increase in the momentum of the air curtain flow. As a result, the persistence of the air curtain flow was extended by approximately 1.5 times compared to the conventional one.

Academic Significance and Societal Importance of the Research Achievements

本技術によりエアカーテン気流の延伸を実現することで、エアカーテンを隔てた空間を高効率で遮断できるようになる。これにより、人の呼気だけでなく、においや温度、湿度なども高い効率で遮断できるようになり、冷蔵・冷凍庫、冷暖房などの省エネに貢献す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

    (11 results)

All 2023 2022 2021

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 6 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Blocking effect of desktop air curtain on aerosols in exhaled breath2022

    • Author(s)
      Takamure Kotaro、Sakamoto Yasuaki、Yagi Tetsuya、Iwatani Yasumasa、Amano Hiroshi、Uchiyama Tomomi
    • Journal Title

      AIP Advances

      Volume: 12 Issue: 5 Pages: 055323-055323

    • DOI

      10.1063/5.0086659

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Experimental Investigation on Jet Issuing from Two-Dimensional Nozzle Equipped with Cut Airfoil of NACA00362023

    • Author(s)
      C. Wang, K. Takamure, T. Uchiyama
    • Organizer
      10th International Conference on Vortex Flow Mechanics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental Investigation of Jet Characteristics with Cut NACA0036 Airfoil2023

    • Author(s)
      C. Wang, K. Takamure, T. Uchiyama
    • Organizer
      International Conference on Materials and Systems for Sustainability
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] デスクトップ型エアカーテン装置によるエアロゾル粒子の遮断効果2022

    • Author(s)
      武藤 広将, 高牟礼 光太郎, 小林 大亮, 春木 健杜, 天野 浩, 八木 哲也, 岩谷 靖雅, 内山 知実
    • Organizer
      第50回可視化情報シンポジウム
    • Related Report
      2022 Research-status Report
  • [Presentation] 呼気中のエアロゾルを遮断するデスクトップ型エアカーテン装置の開発2022

    • Author(s)
      高牟礼 光太郎, 坂本 恭晃, 八木 哲也, 岩谷 靖雅, 天野 浩, 内山 知実
    • Organizer
      日本機械学会2022年度年次大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Development of Air Curtain Device Blocking Aerosols in Exhaled Breath2022

    • Author(s)
      K. Takamure, Y. Sakamoto, Y. Iwatani, H. Amano, T. Yagi, H. Muto, T. Uchiyama
    • Organizer
      The 6th International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Desktop air curtain system with virus inactivation function2022

    • Author(s)
      K. Takamure, T. Uchiyama
    • Organizer
      The 2nd International Symposium on Design & Engineering by Joint Inverse Innovation for Materials Architecture
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Experimental investigation of aerosol Blocking effect by desktop air curtain device2022

    • Author(s)
      D. Kobayashi, H. Muto, T. Haruki, K. Takamure, H. Amano, T. Yagi, Y. Iwatani, T. Uchiyama
    • Organizer
      Ninteenth International Conference on Flow Dynamics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Numerical investigation of aerosol Blocking effect by desktop air curtain device2022

    • Author(s)
      H. Muto, K. Takamure, D. Kobayashi, T. Haruki, H. Amano, T. Yagi, Y. Iwatani, T. Uchiyama
    • Organizer
      Ninteenth International Conference on Flow Dynamics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 卓上型エアカーテン装置によるエアロゾル粒子の遮断および捕集性能2022

    • Author(s)
      高牟礼 光太郎, 小林 大亮, 武藤 広将, 春木 健杜, 天野 浩, 八木 哲也, 岩谷 靖雅, 内山 知実
    • Organizer
      日本機械学会 第100期 流体工学部門 講演会
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 流体送出装置2021

    • Inventor(s)
      内山知実,高牟礼光太郎,坂本恭晃
    • Industrial Property Rights Holder
      内山知実,高牟礼光太郎,坂本恭晃
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-078990
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

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

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