This article is cited in 2 papers

MODELS IN PHYSICS AND TECHNOLOGY

Modeling of sand-gravel bed evolution in one-dimension

I. I. Potapov, K. S. Snigur

Computer Center FEB RAS, 65, Kim U Chena st., Khabarovsk, 680000, Russia

Abstract: In the paper the model for a one-dimensional non-equilibrium riverbed process is proposed. The model takes into account the suspended and bed-load sediment transport. The bed-load transport is determined by using the original formula. This formula was derived from the thin bottom layer motion equation. The formula doesn’t contain new phenomenological parameters and takes into account the influence of bed slope, granulometric and physical mechanical parameters on the bed-load transport. A number of the model test problems are solved for the verification of the proposed mathematical model. The comparison of the calculation results with the established experimental data and the results of other authors is made. It was shown, that the obtained results have a good agreement with the experimental data in spite of the relative simplicity of the proposed mathematical model.

Keywords: bed-load sediment, non-equilibrium, riverbed deformations, channel processes.

UDC: 519.8

Received: 16.09.2014
Revised: 19.03.2015

DOI: 10.20537/2076-7633-2015-7-2-315-328