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The stability of a stratified fluid

Published online by Cambridge University Press:  28 March 2006

J. B. Hinwood
J. B. Hinwood
Affiliation:
Department of Mechanical Engineering, Monash University, Melbourne
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Abstract

For the flow of a stably-stratified fluid in the inlet region of a rectangular duct, it is shown experimentally that the upper and lower critical Reynolds numbers are functions of the interfacial Froude number F, and that if F is large they are lower than for a homogeneous flow. In stratified flows the disturbances leading to turbulent flow sometimes arise at the interface and lead to interfacial waves, whose wavelength at breaking is equal to the conduit depth.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 29 , Issue 2 , 11 August 1967 , pp. 233 - 240
Copyright
© 1967 Cambridge University Press

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References

Charles, M. H. & Lilleleht, L. U. 1965 J. Fluid Mech. 22, 217.
Macagno, E. O. & Hinwood, J. B. 1964 VIIIe Journ. De l'Hydraulique, Soc. Hydro. Tech. France.
Macagno, E. O. & Hinwood, J. B. 1965 Final Report of Inst. of Hydraulic Research, Iowa City, to U.S. Army Research Office (Durham) on Interfacial Effects in Stratified Fluids.