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Eighth International Symposium on Turbulence and Shear Flow Phenomena
August, 28-30, 2013, Poitiers, Futuroscope, France

DOI: 10.1615/TSFP8

MEAN FLOW MEASUREMENTS IN VERY HIGH REYNOLDS NUMBER TURBULENT BOUNDARY LAYER

pages 1-6
DOI: 10.1615/TSFP8.430
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摘要

Measurements are presented of the mean flow behavior in zero pressure gradient, flat plate, turbulent boundary layer for Reynolds numbers from Reθ = 8.8 × 103 to Reθ = 225 × 103. The measurements were conducted in the High Reynolds number Test Facility (HRTF) at Princeton University which uses compressed air as the working fluid. The mean velocity profiles were measured using Pitot probes as well as Nano-Scale Thermal Anemometry Probes (NSTAPs). The results demonstrate excellent agreement with each other, and support the suggestions made by previous authors that the von Karman constant for turbulent boundary layers is close to a value of 0.39 and that the logarithmic region extends up to y/δ = 0.15.

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