Title: Prediction of the aerodynamic effect of model deformation during transonic wind tunnel tests

Authors: Sylvain Mouton; Yves Le Sant; Marianne Lyonnet

Addresses: ONERA, The French Aerospace Lab, F-59045 Lille, France ' ONERA, The French Aerospace Lab, F-92190 Meudon, France ' ONERA, The French Aerospace Lab, BP25 F-73500 Modane, France

Abstract: During wind tunnel tests, any aircraft model deforms as a result of aerodynamic loads. This behaviour is generally regarded as a spurious effect of the testing technique that needs to be accounted for and corrected. This paper presents available optical technique to measure wing deformation in ONERA wind tunnels, and introduces a simulation method to predict the effect of the deformation on the model aerodynamic characteristics.

Keywords: stereovision; marker detection; camera calibration; photogrammetry; adjoint method; wing deformation; aerodynamics; transonic testing; cryogenic wind tunnel; wind tunnel testing; model deformation; aircraft modelling; wing deformation; simulation.

DOI: 10.1504/IJESMS.2013.052371

International Journal of Engineering Systems Modelling and Simulation, 2013 Vol.5 No.1/2/3, pp.44 - 56

Available online: 21 Feb 2013 *

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