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A Hybrid Lattice Boltzmann Method–Finite Difference Method Model for Sediment Transport and Riverbed Deformation
Author(s) -
Liu H.,
Ding Y.,
Li M.,
Lin P.,
Yu M. H.,
Shu A. P.
Publication year - 2015
Publication title -
river research and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.679
H-Index - 94
eISSN - 1535-1467
pISSN - 1535-1459
DOI - 10.1002/rra.2735
Subject(s) - lattice boltzmann methods , finite volume method , sediment transport , advection , sediment , geology , geotechnical engineering , finite difference method , mechanics , finite difference , slump , geomorphology , mathematics , physics , mathematical analysis , thermodynamics , compressive strength
Abstract In this study, a two‐dimensional hybrid numerical model for sediment transport based on lattice Boltzmann method and finite difference method is presented. The governing equations for water flow and suspended sediment transport are the shallow water equations and the advection–diffusion equations, respectively. Sediment load is also involved, so that riverbed deformation is numerically simulated. The model is verified by testing transportation of bank‐slump sediment in a sharp bended channel with the comparison to the results of well‐accepted finite volume method, illustrating the effectiveness of the proposed hybrid model. Copyright © 2014 John Wiley & Sons, Ltd.