Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2050
Title: Kinematic wave model for transient bed profiles in alluvial channels under nonequilibrium conditions
Authors: Tayfur, Gökmen
Singh, Vijay P.
Tayfur, Gökmen
Keywords: Water waves
Alluvial channels
Kinematic wave model
Diffusion
Nonequilibrium conditions
Transient bed profiles
Issue Date: Dec-2007
Publisher: John Wiley and Sons Inc.
Source: Tayfur, G., and Singh, V. P. (2007). Kinematic wave model for transient bed profiles in alluvial channels under nonequilibrium conditions. Water Resources Research, 43(12). doi:10.1029/2006WR005681
Abstract: Transient bed profiles in alluvial channels are generally modeled using diffusion (or dynamic) waves and assuming equilibrium between detachment and deposition rates. Equilibrium sediment transport can be considerably affected by an excess (or deficiency) of sediment supply due to mostly flows during flash floods or floods resulting from dam break or dike failure. In such situations the sediment transport process occurs under nonequilibrium conditions, and extensive changes in alluvial river morphology can take place over a relatively short period of time. Therefore the study and prediction of these changes are important for sustainable development and use of river water. This study hence developed a mathematical model based on the kinematic wave theory to model transient bed profiles in alluvial channels under nonequilibrium conditions. The kinematic wave theory employs a functional relation between sediment transport rate and concentration, the shear-stress approach for flow transport capacity, and a relation between flow velocity and depth. The model satisfactorily simulated transient bed forms observed in laboratory experiments.
URI: http://doi.org/10.1029/2006WR005681
http://hdl.handle.net/11147/2050
ISSN: 0043-1397
1944-7973
0043-1397
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
Sürdürülebilir Yeşil Kampüs Koleksiyonu / Sustainable Green Campus Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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