35th Congress of the International Council of the Aeronautical Sciences

03.4 - Applied Aerodynamics

INFLUENCE OF ZIGZAG TAPE–INDUCED TRANSITION ON THE DU89-134 AIRFOIL PERFORMANCE AT LOW REYNOLDS NUMBER

M. Avirovic¹, C. Brunelli¹, B.G. Marinus¹, J. Degroote, University of Ghent, Belgium; J. van Beeck, von Karman Insititute for Fluid Dynamics , Belgium; E. Van Vaerenbergh¹; ¹Royal Military Academy, Belgium

The influence of zigzag tape–induced boundary layer transition on the aerodynamic performance of the DU89-134 airfoil is investigated at low Reynolds number. Wind-tunnel force-balance measurements, pressure data, infrared thermography, and Reynolds-averaged Navier–Stokes simulations reveal Reynolds-number-dependent drag reduction linked to modifications of laminar separation bubble behaviour.


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DOI: 10.71945/icas2026_0221