Aerodynamics Performance Analysis of Effect of Interference on Drone Arms Unsig Computational Fluid Dynamcis Simulations

In this research, the aerodynamic behavior of drone arms by comparing two different shapes – a traditional cylindrical arm and an airfoil-shaped arm. The main focus is to analyze and compare the interference drag created by both shapes using computational fluid dynamics (CFD). In general, cylindrical arms are commonly used in commercial and custom drones, but they create more drag during flight, which reduces the drone’s overall efficiency. On the other hand, airfoil-shaped arms have the potential to reduce drag and improve flight performance. To understand the drag characteristics, both geometries will be designed using Catia V5 software and simulated in ANSYS Fluent under uniform airflow conditions and k-ω turbulence model. The simulation was carried out at different inlet conditions such as freestream velocity of 50 m/s and 100 m/s and maneuvering at different angles of attack varies from 0 to 30 m/s with steps of 5 deg. This research work helps to reveal different aerodynamics parameter coefficient lift , coefficient drag and pressure distributions. Also, pressure contour, velocity contours and velocity vector plot were used to understand the flow physis over the drone arms under flight conditions. At each angle, the aerodynamic forces acting on both arm shapes will be compared. This will help us determine how the arm geometry affects the drag and airflow during real flying conditions. The results will be helpful for future drone designers who want to improve flight performance through better frame design. This paper will also support the idea of using optimized arm shapes in UAV applications to reduce energy loss caused by unnecessary drag. Keyword: Interference Drag. Drone, wing, Lift. Drag, Airfoil, UAV, Link Arm