Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
Aerodynamic optimization of high aspect ratio wings for application in unmanned aerial vehicles (UAV's)
Submission Author:
Bernardo Oliveira Hargreaves , SP , Brazil
Co-Authors:
Bernardo Oliveira Hargreaves, Ricardo Luiz Utsch de Freitas Pinto
Presenter: Bernardo Oliveira Hargreaves
doi://10.26678/ABCM.ENCIT2018.CIT18-0148
Abstract
Recently, aircraft flying at high altitudes have become the center of attention of the academy and industry, as they have the potential to play the role that was once served only by satellites, such as monitoring, remote prospection and telecommunications. Unmanned aerial vehicles (UAV’s) have lower operating costs and can conduct flight missions where they can take off and land at any time for equipment maintenance. This type of aircraft must have its endurance maximized to be able to remain in the air as long as possible. The reference for this paper is the AeroVironment Helios aircraft, that flew at more than 29,000 meters of altitude in 2001. Comparative studies are presented in order to evaluate the aerodynamic behavior of wings of different geometric parameters. The Multhopp method was implemented by the authors, to calculate the aerodynamic coefficients and loads on the wing. In this paper, the geometry of the wing is parameterized as a tapered shape with twist angle, keeping the same planform area. The results showed aerodynamic gains in terms of endurance and range. The results were promising for designing high aspect ratio wings to be applied in unmamed air vehicles (UAV's).
Keywords
UAV, Optimization, Wing design, High Aspect Ratio
