A review is carried out of the wide range of numerical methods availab
le for modelling contaminant transport in rivers and estuaries. Theore
tical considerations indicate that Eulerian-Lagrangian methods (ELMs),
particularly the Lagrange-Galerkin method, show the most promise for
these problems. Such a method is implemented in a contaminant transpor
t simulator flexible enough for modelling realistic problems. Test pro
blems demonstrate the high performance of the simulator in comparison
with other methods. (C) 1998 Elsevier Science Ltd. All rights reserved
.