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Advances in computational morphodynamics using the International River Interface Cooperative (iRIC) software

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Title: Advances in computational morphodynamics using the International River Interface Cooperative (iRIC) software
Authors: Shimizu, Yasuyuki Browse this author →KAKEN DB
Nelson, Jonathan Browse this author
Ferrel, Kattia Arnez Browse this author
Asahi, Kazutake Browse this author
Giri, Sanjay Browse this author
Inoue, Takuya Browse this author
Iwasaki, Toshiki Browse this author
Jang, Chang-Lae Browse this author
Kang, Taeun Browse this author
Kimura, Ichiro Browse this author
Kyuka, Tomoko Browse this author
Mishra, Jagriti Browse this author
Nabi, Mohamed Browse this author
Patsinghasanee, Supapap Browse this author
Yamaguchi, Satomi Browse this author
Keywords: morphodynamics
rivers
sediment transport
bank erosion
bars
bedforms
bedrock channels
channel evolution
Issue Date: Jan-2020
Publisher: John Wiley & Sons
Journal Title: Earth surface processes and landforms
Volume: 45
Issue: 1
Start Page: 11
End Page: 37
Publisher DOI: 10.1002/esp.4653
Abstract: Results from computational morphodynamics modeling of coupled flow-bed-sediment systems are described for 10 applications as a review of recent advances in the field. Each of these applications is drawn from solvers included in the public-domain International River Interface Cooperative (iRIC) software package. For mesoscale river features such as bars, predictions of alternate and higher mode river bars are shown for flows with equilibrium sediment supply and for a single case of oversupplied sediment. For microscale bed features such as bedforms, computational results are shown for the development and evolution of two-dimensional bedforms using a simple closure-based two-dimensional model, for two- and three-dimensional ripples and dunes using a three-dimensional large-eddy simulation flow model coupled to a physics-based particle transport model, and for the development of bed streaks using a three-dimensional unsteady Reynolds-averaged Navier-Stokes solver with a simple sediment-transport treatment. Finally, macroscale or channel evolution treatments are used to examine the temporal development of meandering channels, a failure model for cantilevered banks, the effect of bank vegetation on channel width, the development of channel networks in tidal systems, and the evolution of bedrock channels. In all examples, computational morphodynamics results from iRIC solvers compare well to observations of natural bed morphology. For each of the three scales investigated here, brief suggestions for future work and potential research directions are offered.
Rights: ©2019 The Authors Earth Surface Processes and Landforms Published by John Wiley&Sons Ltd
https://creativecommons.org/licenses/by/4.0/
Type: article
URI: http://hdl.handle.net/2115/76589
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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