On surface pressure fluctuations in turbulent boundary layers

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dc.contributor.author Lilley, G. M.
dc.date.accessioned 2017-06-09T13:47:48Z
dc.date.available 2017-06-09T13:47:48Z
dc.date.issued 1960-04
dc.identifier.uri http://dspace.lib.cranfield.ac.uk/handle/1826/11992
dc.description.abstract Existing work on the pressure fluctuations in turbulent shear flaws is briefly reviewed with special reference to the problem of wall turbulence. An approximate theory for the pressure fluctuations on the wall under both a turbulent boundary layer and a wall jet is given and indicates in the latter case an intensity many times that corresponding to the flow over a flat plate at zero pressure gradient, as typified by measurements on the wall of a wind tunnel. Experiments on a wall jet confirm these predictions and details of the few preliminary data are presented. The results from the wall jet suggest that the intensity of the pressure fluctuations in the regions of adverse pressure gradient, on wings and bodies approaching and beyond separation will be higher than in regions of zero pressure gradient. Appendices are included which deal with the necessary extensions to the analysis to fit the velocity correlation functions as measured by Grant (1958), the effects of time delay and eddy convection. en_UK
dc.language.iso en en_UK
dc.publisher College of Aeronautics en_UK
dc.relation.ispartofseries CoA/N-101 en_UK
dc.relation.ispartofseries 101 en_UK
dc.title On surface pressure fluctuations in turbulent boundary layers en_UK
dc.type Report en_UK

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