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Parametric Analysis Of Turbulent Wall Jets

Narayan, KY and Narasimhan, R (1973) Parametric Analysis Of Turbulent Wall Jets. In: Aeronautical Quarterly, 24 (AUG). pp. 207-218.

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The concept of a fully-developed flow based on the hypothesis of selective memory is here applied to general wall-jet type flows. In the presence of a (constant) external stream, the free-stream velocity and the jet momentum flux are taken to be the chief quantities governing the development of the wall jet: two additional nondimensional parameters, representing a momentum flux Reynolds number and the relative momentum defect in the initial boundary layer, are shown to have only a secondary effect on the fully-developed flow. The standard correlations so determined are also found to predict quite well the flow development in Gartshore and Newman's experiments on wall jets in adverse pressure gradients; possible reasons for this somewhat surprising result are discussed. Finally it is shown, by application to the still-air case, that the parameters discovered in incompressible flow are, with appropriate but straightforward modification, successful in describing compressible wall jets also.

Item Type: Journal Article
Publication: Aeronautical Quarterly
Publisher: Royal Aeronautical Society
Additional Information: Copyright of this article belongs to Royal Aeronautical Society.
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited: 14 Jul 2010 10:36
Last Modified: 28 Feb 2011 06:11
URI: http://eprints.iisc.ac.in/id/eprint/28728

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