SIMPLE GENERAL FORMULAE FOR SAND …

1 SIMPLE GENERAL FORMULAE FOR sand TRANSPORT IN RIVERS, ESTUARIES AND COASTAL WATERS by van Rijn ( ) 1. GENERAL characteristics sand can be transported by gravity-, wind-, wave-, tide- and density-driven currents (current-related transport), by the oscillatory water motion itself (wave-related transport) as caused by the deformation of short waves under the influence of decreasing water depth (wave asymmetry) or by a combination of currents and short waves. In rivers the gravity-induced flow generally is steady or quasi-steady generating bed load and suspended load transport of particles in conditions with an alluvial river bed. A typical feature of sediment transport along an alluvial bed is the generation of bed forms from small-scale ripples (order m) up to large-scale dunes (order 100 m).

1 SIMPLE GENERAL FORMULAE FOR SAND TRANSPORT IN RIVERS, ESTUARIES AND COASTAL WATERS by L.C. van Rijn (www.leovanrijn-sediment.com) 1. General …

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