DONATE

IAHR Document Library


« Back to Library Homepage « Proceedings of the 28th IAHR World Congress (Graz, 1999)

A Conservative Semi-Lagrangian Transport Model for Rivers with Transient Storage Zones

Author(s): J. Russell Manson; Steve G. Wallis; Stephen Koepplinger

Linked Author(s):

Keywords: Dvection; Dispersion; Transient-storage; Semi-Lagrangian; DISCUS; Stability; Accuracy

Abstract: A conservative, semi-Lagrangian numerical method for solute transport in fluvial systems with transient storage is presented. Numerical results are compared against an exact solution for solute transport in a uniform advective-dispersive flow with transient storage. The method is stable, accurate and free of grid-scale oscillations over a wide range of Courant and dimensionless diffusion numbers. In addition, the semi-Lagrangian method is shown to be more accurate than an Eulerian method typical of the schemes that have commonly been used in the past for this type of system.

DOI:

Year: 1999

Copyright © 2024 International Association for Hydro-Environment Engineering and Research. All rights reserved. | Terms and Conditions