Numerical Analysis of Passive Device for Aerofoil Performance Enhancement

Abstract

The objective of this paper is to identify the precision location for passive devices over an aerofoil to improve aerodynamic performances. The numerical analysis is carried out using the k-epsilon turbulence model to analyse the lift and drag coefficient at various angles of attack. The results show that the dimple is placed at the location of 20% of the chord and the vortex generator at the location of 15% to 20% provides better results that are used to enhance the lift coefficient of 4% and stall angle of 33% compared to the baseline aerofoils. The novelty of the work is to identify the suitable passive device and optimum location to enhance the aerodynamic performances. This method can be suitable for all types of subsonic wings, which improve the performance of an aircraft at various flying conditions.