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Evaporation from a plane liquid surface into a turbulent boundary layer

Published online by Cambridge University Press:  20 April 2006

P. W. M. Brighton
P. W. M. Brighton
Affiliation:
UKAEA, Safety and Reliability Directorate, Wigshaw Lane, Culcheth, Warrington WA3 4NE
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Abstract

A new analytic solution is presented for predicting evaporation rates from plane liquid surfaces into a neutral turbulent boundary layer. Conditions of passive dispersion are assumed. Molecular diffusivity is incorporated into the boundary conditions. Both smooth and rough surfaces are considered. A comparison with a wide variety of experimental data is made; this tends to reveal inadequacies and inconsistencies in the data, rather than test the theory. The effects of a roughness change at the boundary of the liquid surface and of high vapour pressures can be included for practical purposes by simple formulae. A criterion is derived for the validity of the neglect of buoyancy effects.

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Type
Research Article
Information
Journal of Fluid Mechanics , Volume 159 , October 1985 , pp. 323 - 345
Copyright
© 1985 Cambridge University Press

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