Selective Erosion: A Key Problem in Numerical Modelling of River-bed Changes

by László Rákóczi, Research Cent for Water Resources, Hungary,

Document Type: Proceeding Paper

Part of: Sediment Transport Modeling

Abstract: In capacity-controlled sediment transport of alluvial rivers the so-called 'hiding factor' determines the stability of the various grain-size fractions. The paper shows the effect of grain-size composition of bed materials on the incipient motion with special regard to the role of laminar sublayer covering the surficial grains totally or partially.

Subject Headings: Grain (material) | Granular materials | Sediment transport | River bank stabilization | Bed materials | Erosion | Numerical models | Mathematical models

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