Some properties of boundary layer flow during the transition from laminar to turbulent motion

Dhawan, S and Narasimha, R (1958) Some properties of boundary layer flow during the transition from laminar to turbulent motion. In: Journal of Fluid Mechanics, 3 (04). pp. 418-436.

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Abstract

Transition in the boundary layer on a flat plate is examined from the point of view of intermittent production of turbulent spots. On the hypothesis of localized laminar breakdown, for which there is some expermental evidence, Emmons’ probability calculations can be extended to explain the observed statistical similarity of transition regions. Application of these ideas allows detailed calculations of the boundary layer parameters including mean velocity profiles and skin friction during transition. The mean velocity profiles belong to a universal one-parameter family with the intermittency factor as the parameter. From an examination of experimental data the probable existence of a relation between the transition Reynolds number and the rate of production of the turbulent spots is deduced. A simple new technique for the measurement of the intermittency factor by a Pitot tube is reported.

Item Type:	Journal Article
Publication:	Journal of Fluid Mechanics
Publisher:	Cambridge University Press
Additional Information:	Copyright of this article belongs to Cambridge University Press.
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	18 Aug 2011 08:38
Last Modified:	18 Aug 2011 08:38
URI:	http://eprints.iisc.ac.in/id/eprint/39870

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