Numerical Modeling of Non-Uniform Sediment Transport in River Channels

2018 ◽  
Vol 45 (S1) ◽  
pp. 11-17 ◽  
Author(s):  
A. I. Aleksyuk ◽  
V. V. Belikov ◽  
N. M. Borisova ◽  
T. A. Fedorova
Keyword(s):  
Numerical Modeling ◽  
Sediment Transport ◽  
River Channels

scholarly journals Sediment Transport and Water Flow Resistance in Alluvial River Channels: Modified Model of Transport of Non-Uniform Grain-Size Sediments

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2038
Author(s):  
Gennady Gladkov ◽  
Michał Habel ◽  
Zygmunt Babiński ◽  
Pakhom Belyakov
Keyword(s):  
Sediment Transport ◽  
Water Flow ◽  
Transport Model ◽  
Flow Characteristics ◽  
Field Measurements ◽  
Field Investigation ◽  
Empirical Modeling ◽  
River Channels ◽  
Channel Deformations ◽  
East European

The paper presents recommendations for using the results obtained in sediment transport simulation and modeling of channel deformations in rivers. This work relates to the issues of empirical modeling of the water flow characteristics in natural riverbeds with a movable bottom (alluvial channels) which are extremely complex. The study shows that in the simulation of sediment transport and calculation of channel deformations in the rivers, it is expedient to use the calculation dependences of Chézy’s coefficient for assessing the roughness of the bottom sediment mixture, or the dependences of the form based on the field investigation data. Three models are most commonly used and based on the original formulas of Meyer-Peter and Müller (1948), Einstein (1950) and van Rijn (1984). This work deals with assessing the hydraulic resistance of the channel and improving the river sediment transport model in a simulation of riverbed transformation on the basis of previous research to verify it based on 296 field measurements on the Central-East European lowland rivers. The performed test calculations show that the modified van Rijn formula gives the best results from all the considered variants.

Three-dimensional numerical modeling of cohesive sediment transport and wind wave impact in a shallow oxbow lake

2008 ◽  
Vol 31 (7) ◽  
pp. 1004-1014 ◽  
Author(s):  
Xiaobo Chao ◽  
Yafei Jia ◽  
F. Douglas Shields ◽  
Sam S.Y. Wang ◽  
Charles M. Cooper
Keyword(s):  
Numerical Modeling ◽  
Sediment Transport ◽  
Wind Wave ◽  
Three Dimensional ◽  
Cohesive Sediment ◽  
Oxbow Lake ◽  
Wave Impact ◽  
Cohesive Sediment Transport

Sediment transport mechanisms in altered depositional environments of the Anthropocene Nakdong Estuary: A numerical modeling study

2020 ◽  
Vol 430 ◽  
pp. 106364
Author(s):  
Jongwi Chang ◽  
Guan-hong Lee ◽  
Courtney K. Harris ◽  
Yongsik Song ◽  
Steven M. Figueroa ◽  
...  
Keyword(s):  
Numerical Modeling ◽  
Sediment Transport ◽  
Depositional Environments ◽  
Transport Mechanisms ◽  
Modeling Study

Numerical modeling of hydrodynamics and sediment transport in lower Mississippi at a proposed delta building diversion

2012 ◽  
Vol 472-473 ◽  
pp. 340-354 ◽  
Author(s):  
Ehab A. Meselhe ◽  
Ioannis Georgiou ◽  
Mead A. Allison ◽  
John A. McCorquodale
Keyword(s):  
Numerical Modeling ◽  
Sediment Transport
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