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Main Title: A Novel Slope Failure Operator for a Non-Equilibrium Sediment Transport Model
Author(s): Zhao, Jiaheng
Özgen, Ilhan
Liang, Dongfang
Hinkelmann, Reinhard
Type: Conference Object
Language Code: en
Is Part Of: 10.14279/depositonce-8380
Abstract: Complex transport mechanism and interaction between fluid and sediment make the mathematical and numerical modeling of sediment transport very challenging. Different types of models can lead to different results. This paper investigates a non-equilibrium sediment transport model based on the total load. In this type of model, it is assumed that a bed slide will occur if the bed slope reaches a critical angle. This is enabled by means of a slope failure operator. Existing slope failure operators usually suffer from the high computational cost and may fail at wet/dry interfaces. The main contribution of this work is the development of a novel slope failure operator for the total load transport model, based on a modified mass balance approach. The proposed approach is verified in three test cases, involving bank failure, dyke overtopping and a two-dimensional bank failure. It is shown that the proposed approach yields good agreement with analytical results and measurement data.
Issue Date: 2018
Date Available: 29-Apr-2019
DDC Class: 627 Wasserbau
Subject(s): shallow water
sediment transport
total load
slope failure
Proceedings Title: 13th International Conference on Hydroinformatics
Editor: Loggia, Goffredo La
Freni, Gabriele
Puleo, Valeria
Marchis, Mauro De
Publisher: EasyChair
Publisher Place: Manchester
Volume: 2018
Number: 3
Publisher DOI: 10.29007/3rtl
Page Start: 2441
Page End: 2448
EISSN: 2516-2330
Appears in Collections:FG Wasserwirtschaft und Hydrosystemmodellierung » Publications

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