604 Study on Aerodynamic Characteristics of Wings Using Damping of Trailing Vortices due to Numerical Lifting Line Method

2013 ◽  
Vol 2013.52 (0) ◽  
pp. 157-158
Author(s):  
Yusuke IKEDA ◽  
Osamu KOBAYASHI ◽  
Akihiro MISAWA
Keyword(s):  
Aerodynamic Characteristics ◽  
Line Method ◽  
Trailing Vortices ◽  
Lifting Line ◽  
Lifting Line Method

Q3D-Wing: Validation of a Modern Lifting-Line Method for Application to Clean and Iced Wings

2006 ◽  
Author(s):  
Rich Hindman ◽  
Nick Crist ◽  
Brandon Williams ◽  
X. Chi ◽  
Yung Choo ◽  
...  
Keyword(s):  
Line Method ◽  
Lifting Line ◽  
Lifting Line Method

Analysis of UAS-S4 Éhecatl aerodynamic performance improvement using several configurations of a morphing wing technology

2016 ◽  
Vol 120 (1231) ◽  
pp. 1337-1364 ◽  
Author(s):  
O. Şugar Gabor ◽  
A. Koreanschi ◽  
R.M. Botez
Keyword(s):  
Aerodynamic Characteristics ◽  
Morphing Wing ◽  
Flow Solver ◽  
Bee Colony ◽  
Gradient Based ◽  
Search Routine ◽  
Drag Ratio ◽  
Lifting Line ◽  
Lift To Drag Ratio ◽  
Lifting Line Method

ABSTRACTThe paper presents the results of the aerodynamic optimisation of an Unmanned Aerial System's wing using a morphing approach. The shape deformation of the wing is achieved by placing actuator lines at several positions along its span. For each flight condition, the optimal displacements are found by using a combination of the new Artificial Bee Colony algorithm and a classical gradient-based search routine. The wing aerodynamic characteristics are calculated with an efficient nonlinear lifting line method coupled with a two-dimensional viscous flow solver. The optimisations are performed at angles of attack below the maximum lift angle, with the aim of improving the Hydra Technologies UAS-S4 wing lift-to-drag ratio. Several configurations of the morphing wing are proposed, each with a different number of actuation lines, and the improvements obtained by these configurations are analysed and compared.

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