Journal article
Pressure fluctuation in high-Reynolds-number turbulent boundary layer: Results from experiments and DNS
Y Tsuji, S Imayama, P Schlatter, PH Alfredsson, AV Johansson, I Marusic, N Hutchins, J Monty
Journal of Turbulence | Published : 2012
Abstract
We have developed a small pressure probe and measured both static pressure and wall pressure simultaneously in turbulent boundary layers up to Reynolds numbers based on the momentum thickness Rθ ≃ 44,620. The measurements were performed at large experimental facilities in Sweden, Australia, and Japan.We find that the measured pressure data are contaminated by the artificial background noise induced by test section and are also affected by the flow boundary conditions. By analyzing data from different wind tunnels acquired at the same Reynolds number, we evaluate the effect of background noises and boundary conditions on the pressure statistics. We also compare the experimental results with r..
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Awarded by Japan Society for the Promotion of Science
Funding Acknowledgements
Financial support from the Japan Society for the Promotion of Science (B) 20360083 is gratefully acknowledged. The experiment in Kyushu was supported in part by the Collaborative Research Program of Research Institute for Applied Mechanics, Kyushu University. We appreciate Prof. Ohya and Mr. Watanabe for their help during the measurements. The support by Dr. R. Orlu, Dr. T. Kurian, and Prof. J. Fransson was indispensable in our measurements. For the Melbourne measurement, we would like to thank Prof. M. Chong for discussions on the shear stress measurements. We would also like to thank our colleagues in the United States, Japan, and Italy for their collaboration.