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Spatial structure in the viscous sublayer

Published online by Cambridge University Press:  29 March 2006

A. K. Gupta ,
J. Laufer  and
R. E. Kaplan
A. K. Gupta
Affiliation:
Department of Aerospace Engineering, University of Southern California, Los Angeles
J. Laufer
Affiliation:
Department of Aerospace Engineering, University of Southern California, Los Angeles
R. E. Kaplan
Affiliation:
Department of Aerospace Engineering, University of Southern California, Los Angeles
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Abstract

An experimental investigation was performed to study the spatial coherence of structures in the sublayer of a turbulent boundary layer observed previously by flow visualization. The present work verifies these observations in an Eulerian reference frame and develops a statistical description of the phenomenon. The technique involves simultaneous digital sampling of an array of constant temperature hot-wire anemometers arranged to extract information about a spanwise variation in flow quantities. The quantitative description agrees with dimensionless measures of the structure scales previously published.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 50 , Issue 3 , 14 December 1971 , pp. 493 - 512
Copyright
© 1971 Cambridge University Press

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References

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