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Turbulent near-wake development behind a flat plate

Subaschandar, N and Prabhu, A (1999) Turbulent near-wake development behind a flat plate. In: Recherche Aerospatiale, La, 3 (2). 61-70 .

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Official URL: http://dx.doi.org/10.1016/S1270-9638(99)80030-3

Abstract

An asymptotic analysis of the two-dimensional turbulent near-wake flow behind a Rat plate with sharp trailing edge has been formulated, The feature that the near-wake, which is dominated by the mixing of the oncoming turbulent boundary layers retains, to a large extent, the memory of the turbulent structure of the upstream boundary layer has been exploited to develop the analysis. This analysis leads to two regions of the near-wake flow (the inner near-wake and the outer near-wake) for which the governing equations are derived. The matching conditions among these regions lead to a logarithmic variation in the normal direction in the overlapping region surrounding the inner near-wake. These features are validated by the available experimental data. Similarity solutions for the velocity distribution (which satisfy the required matching conditions) in the inner near-wake and outer near-wake regions have been obtained by making the appropriate eddy-viscosity assumptions, Uniformly valid solutions for velocity distribution have been constructed for the near-wake. The solutions show good agreement with available experimental data. (C) Elsevier, Paris.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier Science.
Keywords: turbulent flow;two-dimensional flow;near wake flow;asymptotic analysis;trailing edge;turbulent boundary layer;eddy viscosity
Department/Centre: Division of Mechanical Sciences > Aerospace Engineering (Formerly, Aeronautical Engineering)
Date Deposited: 03 Aug 2011 06:55
Last Modified: 03 Aug 2011 06:55
URI: http://eprints.iisc.ernet.in/id/eprint/38906

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