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Experimental study of drag-reduction devices on a flatback airfoil

Manolesos, M. ORCID: 0000-0002-5506-6061 and Voutsinas, S. G. (2016). Experimental study of drag-reduction devices on a flatback airfoil. AIAA Journal, 54(11), pp. 3382-3396. doi: 10.2514/1.J054901


Various trailing-edge drag-reduction devices, including a new flap device, were examined experimentally on a flatback airfoil in a wind tunnel. The tests concerned a 30% thick airfoil with 10.6% thick trailing edge. Pressure, hot wire, and stereo particle image velocimetry measurements were performed at a chord Reynolds number of 1.5e6. Results show that the best-performing devices decrease drag, increase the vortex shedding frequency, and reduce flow variation downstream of the wing trailing edge. The best-performing device was a combination of the flap with an offset cavity plate. Further investigation is required for the optimization of the new device to examine its effects on noise reduction, load mitigation, and control.

Publication Type: Article
Subjects: T Technology > TL Motor vehicles. Aeronautics. Astronautics
Departments: School of Mathematics, Computer Science & Engineering > Engineering > Mechanical Engineering & Aeronautics
Project Input:
Project IDFunder NameFunder ID
Date available in CRO: 03 Nov 2021 09:21
Date deposited: 3 November 2021
Date of acceptance: 8 April 2016
Date of first online publication: 30 June 2016
Text - Accepted Version
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