Sediment Transport under Normal and Tangential Bottom Stresses with the Bottom Slope Taken into Account
A. G. Petrov1 and I. I. Potapov2
1Ishlinskii Institute for Problems in Mechanics, Russian Academy of Sciences, Moscow, 119526 Russia
2Computing Center, Far East Branch of Russian Academy of Sciences, Khabarovsk, 680000 Russia
Keywords: channel processes, sediment transport, bottom layer, bottom waves, channel resistance
Abstract
It is shown that the sediment transport rate is uniquely determined by the normal and tangential stresses and the slope of the bottom surface. The dependence of the mass flow rate of sediments transported over an uneven eroded bottom on these three characteristics was obtained analytically. A formula for the sediment transport rate that generalizes a number of well-known formulas of sediment transport was derived within the framework of a two-velocity model.
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