A Turbulent Boundary Layer on a Flat Plate with Mainstream Containing Turbulence and Vorticity

概要

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A turbulent boundary layer on a flat plate with the mainstream containing vorticity and turbulence has been examined experimentally. The experiments were carried out in the region where the mainstream conditions were constant in the downstream direction. The velocity defect showed similar profiles in every section in each test run. An approximate analysis was made assuming an equilibrium flow and it turned out that this method of analysis useful to interpret the experimental results, which show that the turbulent mixing becomes more or less intensive due to the mainstream perturbations in consideration. The vorticity affects much the turbulence within the boundary layer.
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