Document Type : Research Article

Authors

1 Ph.D. Student, Department of Mech., Elec., and Comp. Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

2 Professor, Department of Aerospace Engineering, Sharif University of Technology, Tehran, Iran

3 Assistant Professor, Department of Mech, Elec, and Comp. Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran

Abstract

Inspiring from bird’s wings and flights has long been a fascinating subject. In recent years, due to advent of materials and implementation of bird’s flights, use of morphing wings have created considerable changes in scientific issues related to air vehicles. In this article, for the first time, aerodynamic and aeroacoustic studies of a type of (twist) morphing wing are performed. The main pupose of this article is to numerically investigate aerodynamics and aeroacoustics of a twisted morphing wing for a geometry similar to Shahed- 129 UAV. In the manufaturing part of this article, a new method is introduced, which uses actuators to change the wing’s shape. In this article, k- ω- SST modeling for turbulent flow and Fluent software were used. Our results show that with increase of twist angle and attack angle of up to 15 degrees, both lift and drag increase. In addition, at the same angle of attack, for high twist angles, increasing twist angle increases the growth of vortices, causesing a small increase in lift coefficient.

Keywords

Main Subjects

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