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Strange interface deformation pulses in the flow of layered liquids

Published online by Cambridge University Press:  26 April 2006

B. K. Chatterjee ,
M. H. Engineer ,
B. Roy  and
Pradip Roy
B. K. Chatterjee
Affiliation:
Department of Physics, Bose Institute, Calcutta 700009, India
M. H. Engineer
Affiliation:
Department of Physics, Bose Institute, Calcutta 700009, India
B. Roy
Affiliation:
Department of Physics, Bose Institute, Calcutta 700009, India
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Abstract

The interface in acoustically driven layered liquids, in an enclosed geometry, was found to be unstable to the production of spatially localized, quasi-periodic pulses of deformation. The most interesting property of these pulses is that they propagate in a direction opposite to that of the axial streaming velocity of both liquids. Experimental data are presented describing aspects of the phenomenon which occur only when both the interfacial tension and the density difference are small.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 248 , March 1993 , pp. 663 - 669
Copyright
© 1993 Cambridge University Press

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References

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