✦ LIBER ✦

Numerical approaches for 1D morphodynamic modelling

✍ Scribed by Justin Hudson; Jesper Damgaard; Nick Dodd; Tim Chesher; Alan Cooper

Publisher: Elsevier Science
Year: 2005
Tongue: English
Weight: 274 KB
Volume: 52
Category: Article
ISSN: 0378-3839
DOI: 10.1016/j.coastaleng.2005.04.004

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✦ Synopsis

Existing methods for solving 1D morphodynamical systems have been reviewed and new, improved approaches have been identified. Usually the flow equations and the bed-updating equation are solved at separate time steps, using a quasi-steady approach. In this paper we have investigated the simultaneous (or coupled) solution of the equations. The schemes tested are the Lax-Wendroff and the Roe schemes, both with and without flux-limiting methods. Furthermore the discretisation of source terms has been investigated and has shown to be important.

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