Direct Measurement of Supersonic Skin Friction

Abstract

Recent experiments at the Jet Propulsion Laboratory have established the effect of compressibility on local skin friction for Mach numbers up to 4.5. Friction coefficients were obtained simultaneously at three stations on a flat plate, for both laminar and turbulent boundary-layer flow, for Reynolds numbers from 4 X 10^5 to 1 X 10^7. The floating element technique used is similar to that of Liepmann and Dhawan.

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