Computational and Experimental Validation of the Active Morphing Wing

DD Smith, MH Lowenberg, DP Jones (University of Bristol) & MI Friswell (Swansea University)

Journal of Aircraft, Vol. 51, No. 3, May 2014, pp. 925-937

Abstract

An advanced computational and experimental analysis has been performed upon a conventional aircraft wing with two outboard morphing partitions that are variable in twist and dihedral angle. Results are generated with the intention of drawing meaningful comparisons with initial trends in aerodynamic and structural efficiency that have been observed in previous optimisation studies. Computational results are obtained with the DLR Tau computational fluid dynamics code, both for an aircraft wing in high speed flight and for a wing modelled at low speed with wind tunnel wall constraints. Experimental testing has been performed in the University of Bristol 7'x5' low speed wind tunnel. Outer twist variation of ±3° and dihedral angles from planar up to 90° C-wing geometries are tested for a range of incidence angles. Results demonstrate varying levels of agreement between each form of analysis method and offer insight into the aerodynamic and structural trade-off required to select an optimal configuration.

Paper Availability

This material has been published in the Journal of Aircraft, Vol. 51, No. 3, May 2014, pp. 925-937. Unfortunately the copyright agreement with AIAA does not allow for the PDF file of the paper to be available on this website. However the paper is available from AIAA - see the link below.


Link to paper using doi: 10.2514/1.C032262

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