Coastal morphodynamical modelling in nonlinear shallow water framework using a coordinate transformation method

Huynh, Van Long and Dodd, Nicholas and Zhu, Fangfang (2017) Coastal morphodynamical modelling in nonlinear shallow water framework using a coordinate transformation method. Advances in Water Resources, 107 . pp. 326-335. ISSN 0309-1708

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Abstract

A 1D numerical model of Nonlinear Shallow Water Equations (NSWEs) coupled to an advection equation for suspended sediment and a bed evolution equation is developed. The moving boundary at the shoreline is treated by a coordinate transformation method (CTM). An absorbing-generating seaward boundary condition in the transformed variables is also developed. The purely hydrodynamic component (NSWEs) is verifed against analytical results. The NSWEs plus advection equation is verifed quasi-analytical results. The fully-coupled model with bed change due to bed-load is verifed against a single swash event and long-term numerical simulation. Excellent agreement is observed in all verifcations.

Item Type: Article
Keywords: Coupled hydro-morphodynamic model, Coordinate transformation method, Non-breaking waves, Wetting-drying
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Civil Engineering
Identification Number: 10.1016/j.advwatres.2017.07.003
Depositing User: Dodd, Nicholas
Date Deposited: 17 Jul 2017 13:15
Last Modified: 18 Jul 2017 16:28
URI: http://eprints.nottingham.ac.uk/id/eprint/44205

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