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On the Effect of the Froude Number and Hydromorphometric Parameters on Sediment Transport in Rivers

  • WATER RESOURCES AND THE REGIME OF WATER BODIES
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Abstract

A number of requirements for sediment transport formulas are considered for using in mathematical and physical models of alluvial channels. Some formulas (Bagnold, Petrov, Kopaliani) are analyzed and compared. It is demonstrated that the universal bed load transport formula should implicitly contain the Froude number. At the same time, the dependence of bed load discharge on the hydraulic resistance coefficient and the non-moving flow velocity increases the calculation error. However, these parameters, must be taken into account in simulating bed deformations for non-uniform sediments.

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The research is made as a part of the State task for Water Problems Institute, theme no. 0147-2019-0003 (state registration no. АААА-А18-118022090056-0).

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Correspondence to V. V. Belikov.

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Belikov, V.V., Borisova, N.M., Fedorova, T.A. et al. On the Effect of the Froude Number and Hydromorphometric Parameters on Sediment Transport in Rivers. Water Resour 46 (Suppl 1), S20–S28 (2019). https://doi.org/10.1134/S0097807819070029

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