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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) FULL PAPERS : THEME 3- SEDIMENT MANAGEMENT AND MORPHODYNAMICS : CONSIDERATION OF THREE-DIMENSIONAL FLOW AND TRANSPORT PHENOMENA IN MORPHOLOGICAL MODELS OF INLAND WA...
CONSIDERATION OF THREE-DIMENSIONAL FLOW AND TRANSPORT PHENOMENA IN MORPHOLOGICAL MODELS OF INLAND WATERWAYS
Author : THOMAS W ENKA , ANDREAS SCHMIDT , THOMAS BRUDY-ZIPPELIUS
The close interaction of geometric, granulometric and fluid mechanical effects and their influence on bed-forming processes in alluvial waterways require the highest possible temporal and spatial resolution approach. Particularly the three- dimensional effects of the flow close to construction works and along river bends play a crucial role. It is quite obvious that 3D flow models allow a better prediction of morphological processes, contradicted, however, by the much higher modelling effort, especially regarding practical problems. This conflict led to the investigation of the potential of three- dimensional flow modelling to describe morphological processes better than by 2D depth-average models. Further, the study, implementation and application of different shear stress approaches stood in the foreground of a R & D project of which the main results are presented in this paper. Based on well-documented flume tests in meander models of different curvature ratios 2D and 3D simulations have been performed. For the modelling of a practical problem a stretch of a German inland waterway was selected. The ?2D sediment transport model Middle Lower Rhine
File Size : 1,557,828 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Article : THEME 3- SEDIMENT MANAGEMENT AND MORPHODYNAMICS
Date Published : 18/04/2016
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