Publication Detail

A Diffusive Transport Mechanism for Fine Sediment

Ole S. Madsen, Sanjay Pahuba, Zhang Hong
13 pp.
MITSG 02-11J
$4.00 DOM

In this paper, a simple conceptual model for the net transport of suspended sediments associated with a simple harmonic tidal current superimposed on a spatially varying near-bottom concentration is developed. Because by accounting for the response of the sediment concentration in the water column to the varying near-bottom concentration, it predicts a net transport rate which is proportional to and in the downward direction of the imposed bottom concentration gradient, i.e. expressible as a diffusive process.

type: Technical reports

Parent Project

Project No.: 2000-RC-74
Title: Combined Wave-Current Flows Over a Movable Rippled Bed

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