A new non-linear vortex lattice method : applications to wing aerodynamic optimizations

Sugar-Gabor, O, Koreanschi, A and Botez, RM 2016, 'A new non-linear vortex lattice method : applications to wing aerodynamic optimizations' , Chinese Journal of Aeronautics, 29 (5) , pp. 1178-1195.

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Abstract

This paper presents a new non-linear formulation of the classical Vortex Lattice Method (VLM) approach for calculating the aerodynamic properties of lifting surfaces. The method accounts for the effects of viscosity, and due to its low computational cost, it represents a very good tool to perform rapid and accurate wing design and optimization procedures. The mathematical model is constructed by using two-dimensional viscous analyses of the wing span-wise sections, according to strip theory, and then coupling the strip viscous forces with the forces generated by the vortex rings distributed on the wing camber surface, calculated with a fully three-dimensional vortex lifting law. The numerical results obtained with the proposed method are validated with experimental data and show good agreement in predicting both the lift and pitching moment, as well as in predicting the wing drag. The method is applied to modifying the wing of an Unmanned Aerial System to increase its aerodynamic efficiency and to calculate the drag reductions obtained by an upper surface morphing technique for an adaptable regional aircraft wing.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering > Salford Innovation Research Centre (SIRC)
Journal or Publication Title: Chinese Journal of Aeronautics
Publisher: Elsevier
ISSN: 1000-9361
Related URLs:
Depositing User: O Sugar-Gabor
Date Deposited: 08 Mar 2017 11:46
Last Modified: 12 Sep 2017 21:19
URI: http://usir.salford.ac.uk/id/eprint/41506

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