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This paper presents an analysis on the velocity distributions of steady,uniform suspended sediment-laden flows in open channels.The sediment particle-particle interactions and the buoyancy effects due to density stratification are taken into account respectively through the water-sediment mixture’s constitutive relationship and an adapted Monin-Obukhov lengthscale to validate the theory for a wider spectrum of sediment concentrations.The developed model,with the same yon Karman coefficient as that of a single phase flow,is shown to be in excellent agreement with measurements of controlled experiments with both low and heavy sediment concentrations.
This paper presents an analysis on the velocity distributions of steady, uniform suspended sediment-laden flows in open channels. Sediment particle-particle interactions and the buoyancy effects due to density stratification are taken into account respectively through the water-sediment mixture’s constitutive relationship and an adapted Monin-Obukhov lengthscale to validate the theory for a wider spectrum of sediment concentrations. The developed model, with the same yon Karman coefficient as that of a single phase flow, is shown to be in excellent agreement with measurements of controlled experiments with both low and heavy sediment concentrations.