Two-dimensional numerical modeling of wood transport

Détails

ID Serval
serval:BIB_2ED32E87529C
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Two-dimensional numerical modeling of wood transport
Périodique
Journal of Hydroinformatics
Auteur⸱e⸱s
Ruiz-Villanueva Virginia, Bladé Ernest, Sánchez-Juny Martí, Marti-Cardona Belén, Díez-Herrero Andrés, Bodoque José María
ISSN
1464-7141
1465-1734
Statut éditorial
Publié
Date de publication
01/09/2014
Peer-reviewed
Oui
Volume
16
Numéro
5
Pages
1077-1096
Langue
anglais
Résumé
The transport of wood material in rivers has been the subject of various studies in recent years. Most research has focused on the ecological and geomorphologic role of wood, its recruitment processes and spatial distribution in streams. In this study, we focused on wood transport dynamics, and we have developed a numerical model to simulate wood transport coupled with a two-dimensional (2D) hydrodynamic model. For this purpose, wood drag forces were incorporated as additional source terms into the shallow water equations, which are solved together with wood transport by using the finite volume method. This new tool has been implemented as a computational module into ‘Iber’, a 2D hydraulic simulation software. The new module analyzes the initial motion threshold of wood based on the balance of forces involved in the wood's movement, and computes the position and velocity of differently shaped logs using a kinematic approach. The method also considers the interaction between the logs themselves and between the logs and the channel walls or boundaries. Flume experiments were used in a straight channel with obstructions to validate the model's capacity to accurately reproduce the movement of floating logs.
Mots-clé
2D hydraulic modeling, flume, ‘Iber' 2D model, large wood, river flow, woody debris
Web of science
Open Access
Oui
Création de la notice
17/10/2020 12:07
Dernière modification de la notice
13/12/2022 14:56
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