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iDEA: Drexel E-repository and Archives > Drexel Academic Community > College of Engineering > Department of Civil, Architectural,and Environmental Engineering > Proceedings of the 7th International Conference on HydroScience and Engineering (ICHE 2006) [ISBN: 0977447405] > Morphological modelling of the wet-dry interface at various timescales

Please use this identifier to cite or link to this item: http://hdl.handle.net/1860/1494

Title: Morphological modelling of the wet-dry interface at various timescales
Authors: Roelvink, Dano
Lesser, Giles
van der Wegen, Mick
Keywords: Coastal morphodynamics;Coastal sediment transport;Beach profiles;Coastal hydrodynamics;Fluvial hydraulics
Issue Date: 13-Sep-2006
Publisher: Michael Piasecki and College of Engineering, Drexel University
Citation: Proceedings of the Seventh International Conference on Hydroscience and Engineering, Philadelphia, PA, September 2006. http://hdl.handle.net/1860/732
Abstract: Many coastal areas, estuaries or rivers have boundaries of a varying degree of softness, which gradually or episodically erode or accrete. Typical related processes are waves hitting the dune, soil mechanical failures like avalanching, abrasion and scour of clay banks. The current article discusses four practical options to model these areas with a numerical approach, depending on the physical situation, the model resolution and the time-scales of interest. The cases under consideration are the uniform profile approach, algorithms used in avalanching and dune erosion, dry-wet cell bank erosion and cut-cell bank erosion. The current research shows that realistic bank erosion behavior can be obtained with relatively simple and promising methods. Nevertheless, contrary to the current formulations the processes of bank erosion and bed erosion preferably should be decoupled allowing their own formulations. This would allow for different and independent timescales. An important parameter would be the slope allowed between dry and wet cells and of cells that were wet and are occasionally dry due to tidal processes or wave action. Furthermore, verification of most of the suggested methods is an ongoing effort.
Description: Paper presented at The Seventh International Conference on HydroScience and Engineering (ICHE) hosted by the College of Engineering at Drexel Univeristy on September 10-13, 2006 in Philadelphia, Pennsylvania. The conference theme was IT in the Field of HydroSciences. It included several mini-symposia that emphasized IT topics in HydroSciences and the yearly meeting of the metadata group of the International Oceanographic Data and Information Exchange organization.
URI: http://hdl.handle.net/1860/1494
ISBN: 0977447405
Appears in Collections:Proceedings of the 7th International Conference on HydroScience and Engineering (ICHE 2006) [ISBN: 0977447405]

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