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Measurements of a laminar wake in a confined stratified fluid

Published online by Cambridge University Press:  29 March 2006

P. Laws  and
T. N. Stevenson
P. Laws
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
T. N. Stevenson
Affiliation:
Department of the Mechanics of Fluids, University of Manchester
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Abstract

Two-dimensional upstream and downstream wakes are produced by extremely slowly moving cylinders in a tank containing a linearly stratified salt solution. The upstream and downstream wakes appear to be of comparable strength, consistent with the symmetry predicted by theories that take account of density diffusion as well as viscosity. This contrasts with the quasi-non-diffusive régime recently studied experimentally by Browand & Winant (1972). The present velocity profiles are essentially similar to those predicted by diffusion theories, althought the magnitudes of the velocities appear to be greatly attenuated by the proximity of the upstream and downstream walls.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 54 , Issue 4 , 22 August 1972 , pp. 745 - 748
Copyright
© 1972 Cambridge University Press

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References

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