26th Congress of International Council of the Aeronautical Sciences
including the 8th AIAA Aviation Technology, Integration, and Operations (ATIO) Conference
14 - 19 September 2008, Anchorage, Alaska, USA
Paper ICAS 2008-2.7.5

FLIGHT EXPERIMENTS ON SWEPT WING TRANSITION USING DISTRIBUTED ROUGHNESS

W. S. Saric, A. L. Carpenter, H. L. Reed
Texas A and M Univ., USA

Keywords: Stability, Laminarization, Flight, Experiments

Data are presented on boundary-layer transition on a swept-wing model mounted on a Cessna O-2 aircraft. The laminarization scheme of spanwise-periodic distributed roughness elements is investigated at chord Reynolds numbers of 8 million. Transition locations were determined for clean configurations and for enhanced surface roughness of an operational surface finish.

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