Chapter
Apr 26, 2012
Numerical Modeling of Alternate Bar Formation Downstream of a Dike
Publication: World Environmental and Water Resources Congress 2007: Restoring Our Natural Habitat
Abstract
Alternate bar and pool development in a river is an important phenomenon intriguing scientists and engineers. It is known that forced bars are not only induced by curvature of a bend, they are also formed by in-stream structures. In this paper, development of alternate forced bars due to a dike inserted into a straight channel is studied with an unsteady two-dimensional depth-averaged sediment transport model. The numerical model is presented first and the model is then applied to a flume experiment carried out at the Delft Hydraulics Laboratory. Model results are compared with measured data with satisfactory agreement. Finally, a comprehensive model sensitivity study is carried out to gain an insight into important parameters that influence the model results.
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© 2007 American Society of Civil Engineers.
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Published online: Apr 26, 2012
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Sedimentation and River Hydraulics, Technical Service Center, Bureau of Reclamation, Denver, CO 80225. E-mail: [email protected]
Sedimentation and River Hydraulics, Technical Service Center, Bureau of Reclamation, Denver, CO 80225. E-mail: [email protected]
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