Transactions of the Japan Society of Mechanical Engineers Series B
Online ISSN : 1884-8346
Print ISSN : 0387-5016
Structure of a Turbulent Separation Buble : Measurements by a Conditional-Sampling Technique
Kyuro SASAKIMasaru KIYA
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1983 Volume 49 Issue 447 Pages 2610-2617

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Abstract

Turbulence structure in a separation bubble formed at the leading edge of a blunt flat plate with right-angled corners was studied experimentally by means of a conditional-sampling technique. The time-mean and fluctuating velocities in the highly-turbulent, reversed-flow region were measured by a split-film sensor. Conditional-sampling technique which employs the wall-pressure fluctuation as a reference signal was successfully applied to find coherent vortex structure in the reattaching zone of the separation bubble.

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