Citation :

Rajesh.V , Jebin Benny Richard.A , Vignesh Kumar.A , Dr.D.Satheesh Pandian, 2025. "Aerodynamically Efficient NACA Profile Bladeless Ceiling Fan " ESP International Journal of Advancements in Science & Technology (ESP-IJAST)  Volume 3, Issue 2: 27-34.

Abstract :

In conventional ceiling fans, rotating blades generate airflow, but they often pose safety risks, consume more energy, and have limitations in uniform air distribution. To overcome these challenges, this project presents the design and analysis of a bladeless ceiling fan utilizing an impeller-driven airflow system. The proposed design incorporates a NACA series blade profile to optimize airflow efficiency and enhance the lift-to-drag ratio for improved performance. The study includes Computational Fluid Dynamics (CFX) simulations using ANSYS Fluent to analyse the airflow characteristics, pressure distribution, and velocity profiles. The results indicate that the bladeless fan achieves higher efficiency (48.025%) compared to conventional fans (13.12%) while maintaining better airflow circulation and reduced energy consumption. Additionally, the time taken for air to reach the ground is significantly lower (2.03 seconds) compared to a conventional ceiling fan (2.51 seconds), ensuring faster and more uniform cooling. The bladeless ceiling fan not only enhances safety by eliminating exposed blades but also provides aesthetic appeal, energy efficiency, and improved air distribution. The findings suggest that this innovative design can serve as a superior alternative to conventional ceiling fans, offering enhanced comfort and sustainability.

References :

[1] Numerical investigation of geometric parameter effects on the aerodynamic performance of a Bladeless fan. School of Mechanical Engineering, Sharif University of Technology, Tehran, Iran, 2015

[2] Numerical investigation of aerodynamic performance and noise characteristic of air multiplier bladeless fan. Sakarya University, Institute of Natural Sciences, Sakarya 54187,Turkiye, 2023

[3] Aerodynamic performance of bladeless ducted fan based on ejection effect with different design variable. Northwestern Polytechnical University, Unmanned Systems Research Institute, Shaanxi, Xi’an , 2024

Keywords :

Aerodynamics, NACA Profile, Bladeless Fan, Ceiling Fan, Fan Design, Innovative Fan Technology, Fan Performance, Passive Air Circulation, Air Movement.