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Longitudinal dispersion coefficients for varying channels

Published online by Cambridge University Press:  20 April 2006

Ronald Smith
Ronald Smith
Affiliation:
Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge CB3 9EW
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Abstract

A general expression is obtained for the longitudinal dispersion coefficient for a passive contaminant in a varying channel. This expression reveals the upstream memory character of the dispersion coefficient. Simple examples are used to illustrate the effects of: a sudden change in breadth, centrifugally driven secondary flows, and changes in the depth profile.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 130 , May 1983 , pp. 299 - 314
Copyright
© 1983 Cambridge University Press

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