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Effects of horizontally two-dimensional bodies on the mass transport near the sea bottom

Published online by Cambridge University Press:  12 April 2006

Jacques Lamoure  and
Chiang C. Mei
Jacques Lamoure
Affiliation:
Laboratoire Régional CETE de Bordeaux, France
Chiang C. Mei
Affiliation:
Department of Civil Engineering, Massachusetts Institute of Technology, Cambridge
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Abstract

Mass transport close to the sea bottom is investigated for simple harmonic waves around a body with a small horizontal dimension. For gravity waves it is shown that the mass transport very near the bottom points towards a convex corner, but near the top of the boundary layer its direction reverses. Possible implications for silting near a pile and a harbour entrance are discussed and some experimental evidence given. For tides, the Coriolis force introduces a spiralling variation within the boundary layer, and possible inferences for coastline modification are drawn.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 83 , Issue 3 , 5 December 1977 , pp. 415 - 431
Copyright
© 1977 Cambridge University Press

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