Turbulent near-wake development behind a flat plate13;

Subaschandar, N and Prabhu, A (1999) Turbulent near-wake development behind a flat plate13;. Aerospace Science and Technology, 3 (2). pp. 61-70. ISSN 1270-9638

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Abstract

An asymptotic analysis of the two-dimensional turbulent near-wake flow behind a flat 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. amp;copy; Elsevier, Paris

Item Type: Journal Article
Uncontrolled Keywords: Turbulent near wake development;asymptotic analysis;Aerodynamics
Subjects: AERONAUTICS > Aerodynamics
Division/Department: Experimental Aerodynamics Division, Experimental Aerodynamics Division
Depositing User: Ms Indrani V
Date Deposited: 15 May 2007
Last Modified: 24 May 2010 09:55
URI: http://nal-ir.nal.res.in/id/eprint/4191

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