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Long-wave decay due to convective turbulence

Published online by Cambridge University Press:  29 March 2006

Theodore Green  and
See Whan Kang
Theodore Green
Affiliation:
Marine Studies Center, The University of Wisconsin, Madison
See Whan Kang
Affiliation:
Marine Studies Center, The University of Wisconsin, Madison
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Abstract

Long waves are generated in a laboratory-size rectangular basin, which is heated uniformly from below. Their subsequent decay is measured, and the decay component due to the action of convective turbulence isolated, using a combination of existing theories and interpretation techniques. An expression is proposed for the turbulent decay decrement as a function of the bulk Rayleigh number. The results agree as well as can be expected with a simple model based on a Reynolds-stress decay estimate obtained by superposing convective thermals on the oscillating flow associated with the long wave.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 73 , Issue 3 , 10 February 1976 , pp. 427 - 444
Copyright
© 1976 Cambridge University Press

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