Sediment Transport Model for Muddy Tidal Riversby E. Andrew Delo, Hydraulics Research Ltd, United Kingdom,
Mary C. Ockenden, Hydraulics Research Ltd, United Kingdom,
Abstract: This paper describes the development and application of a one-dimensional mathematical model capable of simulating the changes to the cross-sections of a muddy tidal river over a time period of months to years. The basic theories of cohesive sediment transport which underpin the model are detailed. The model generates cross-section averaged hydrodynamics which in turn drive the sediment transport processes of erosion, advection and deposition. An application of the model to a UK muddy tidal river is presented; the model is used to predict the likely rate of accretion over a period of years following a river channel deepening scheme.
Subject Headings: Hydrologic models | Mathematical models | Sediment transport | Mud | Tides | Cross sections | Rivers and streams
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