23rd Congress of International Council of the Aeronautical Sciences, 8-13 September, 2002, Toronto, Canada
Paper ICAS 2002-2.8.1

EXPERIMENTAL AND NUMERICAL STUDY ON TRANSITION CHARACTERISTICS AT SUPERSONIC SPEED

H. Sugiura, K. Yoshida, M. Noguchi, Y. Ueda, N. Tokugawa, S. Takagi
NAL, Japan

Keywords: transition, supersonic speed, boundary layer, supersonic laminar flow wing

Boundary-layer transition on a Sears-Haack (S-H) body and a supersonic natural laminar flow (NLF) wing was measured at supersonic speeds in four ground facilities; its stability analyses were also conducted using a compressible eN method. As a result, transition characteristics of the S-H body at Mach 1.2 and the NLF wing at Mach 2 were obtained; the influence of freestream disturbance on the transition was investigated.

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