Author(s): M. Marburger; F. Tonsmann
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Keywords: No Keywords
Abstract: Based on a comprehensive and flexible hydrodynamic model a solution procedure for the prediction of morphological changes in natural rivers founded on an unsteady numerical formulation is presented. Empirical transport relations on a shear stress attempt are incorporated as well as a transport equation for suspended load concentration which is solved with an efficient finitevolume method employing boundary fitted grids. Morphological changes are predicted with the aid of the sediment continuity equation. Geometry and flow field are coupled by the local water depth in a predictor-corrector-algorithm using above all the same time step. The simulation of flume conditions in a marked two dimensional flow field show the applicability of the used algorithm.
Year: 1995