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

2023 Fiscal Year Final Research Report

• Project/Area Number: 21K14074
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 19010:Fluid engineering-related
• Research Institution: Nagoya 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
• 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

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.

Free Research Field

流体工学

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。