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Kinematic wave model for transient bed profiles in alluvial channels under nonequilibrium conditions

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dc.creator Tayfur, Gokmen
dc.creator Singh, Vijay P.
dc.date.accessioned 2011-03-30T17:08:48Z
dc.date.available 2011-03-30T17:08:48Z
dc.date.issued 2007-12-27
dc.identifier.citation Tayfur, G., and V. P. Singh (2007), Kinematic wave model for transient bed profiles in alluvial channels under nonequilibrium conditions, Water Resources Reseach, 43, doi:10.1029/2006WR005681. To view the published open abstract, go to http://dx.doi.org and enter the DOI. en_US
dc.identifier.issn 0043-1397
dc.identifier.uri http://dx.doi.org/10.1029/2006WR005681
dc.identifier.uri http://hdl.handle.net/1969.1/94170
dc.description An edited version of this paper was published by AGU. Copyright 2007 American Geophysical Union. en_US
dc.description.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. en_US
dc.language.iso en en_US
dc.publisher American Geophysical Union en_US
dc.subject bed profile en_US
dc.subject alluvial channel en_US
dc.subject detachment rate en_US
dc.subject deposition rate en_US
dc.subject equilibrium en_US
dc.subject nonequilibrium en_US
dc.title Kinematic wave model for transient bed profiles in alluvial channels under nonequilibrium conditions en_US
dc.type Article en_US
local.department Civil Engineering en_US
local.department Biological and Agricultural Engineering en_US


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