Optimization and design of a morphing wing tip aircraft demonstrator for drag reduction at low speeds, Part II – Experimental validation using infra-red transition measurements during wind tunnel tests

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DOIResolve DOI: http://doi.org/10.1016/j.cja.2016.12.018
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TypeArticle
Journal titleChinese Journal of Aeronautics
ISSN1000-9361
Subjectdrag reduction; infra-red tests; morphing wing; optimization; wind tunnel test
AbstractIn the present paper, an ‘in-house’ genetic algorithm was numerically and experimentally validated. The genetic algorithm was applied to an optimization problem for improving the aerodynamic performances of an aircraft wing tip through upper surface morphing. The optimization was performed for 16 flight cases expressed in terms of various combinations of speeds, angles of attack and aileron deflections. The displacements resulted from the optimization were used during the wind tunnel tests of the wing tip demonstrator for the actuators control to change the upper surface shape of the wing. The results of the optimization of the flow behavior for the airfoil morphing upper-surface problem were validated with wind tunnel experimental transition results obtained with infra-red Thermography on the wing-tip demonstrator. The validation proved that the 2D numerical optimization using the ‘in-house’ genetic algorithm was an appropriate tool in improving various aspects of a wing’s aerodynamic performances.
Publication date
PublisherScienceDirect
LanguageEnglish
AffiliationAerospace; National Research Council Canada
Peer reviewedYes
NPARC number23001243
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Record identifierffa11266-d9f4-4762-9715-ae85ba0ed8af
Record created2017-01-11
Record modified2017-01-11
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