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The Quarterly Journal of Mechanics and Applied Mathematics 1969 22(2):235-246; doi:10.1093/qjmam/22.2.235
© 1969 by Oxford University Press
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ON THE TURBULENT TRANSPORT OF A HETEROGENEOUS SEDIMENT

J. N. HUNT

( Department of Mathematics, University of Reading )

The transport of sediment in steady turbulent flow is described by means of a diffusion equation. It is shown how the inclusion of sediment volume in the continuity equation leads to a distribution of concentration with depth tending to unity at the bed. With a mixture of grain sizes in suspension, the smaller particles can increase in concentration upwards, while the heavier particles are necessarily transported mainly near the bed, in accordance with observations.


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