SKIN FRICTION MEASUREMENTS IN AN INCOMPRESSIBLE TURBULENT BOUNDARY LAYER. PART 1. ADVERSE PRESSURE GRADIENT
V.I. KORNILOV and Yu.A. LITVINENKO*
Institute of Theoretical and Applied Mechanics SB RAS,Novosibirsk, Russia
*Novosibirsk State Technical University, Russia
Abstract
Direct and indirect skin friction measurement techniques that are most widely used in practice are reviewed and briefly characterized. A comparative analysis of measurement results is given for some methods used in an incompressible turbulent boundary layer on a flat plate under conditions of a positive (adverse) stream-wise pressure gradient formed on the plate surface and in a gradient-free flow. The degree of efficiency of the above methods is demonstrated, and their application range and the limits are shown. P.475-491
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