Wall-pressure Fluctuations and Pressure-velocity Correlations in a Turbulent Boundary Layer PDF Download

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Wall-pressure Fluctuations and Pressure-velocity Correlations in a Turbulent Boundary Layer

Wall-pressure Fluctuations and Pressure-velocity Correlations in a Turbulent Boundary Layer PDF Author: John S. Serafini
Publisher:
ISBN:
Category : Fluid dynamics
Languages : en
Pages : 88

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Book Description
This experimental study was carried out at a free-stream Mach number of 0.6 and a Reynolds number per foot of 3.45 x 106. The magnitudes of the wall-pressure fluctuations agree with the Lilley-Hodgson theoretical results. Space-time correlations of the wall-pressure fluctuations generally agree with Willmarth's results for longitudinal separation distances. The convection velocity of the fluctuations is found to increase with increasing separation distances, and its significance is explained. Measurements with the longitudinal component of the velocity fluctuations indicate that the contributions to the wall-pressure fluctuations are from two regions, an inner region near the wall and an outer region linked with the intermittency.