THE 2-DIMENSIONAL TRANSPORT MODULE SUBIEF - APPLICATIONS TO SEDIMENT TRANSPORT AND WATER-QUALITY PROCESSES

This paper describes a new numerical method used within the SUBIEF sof tware to compute the transport of diluted or suspended tracers in a tw o-dimensional depth-averaged free surface flow for domains where the f lood extent varies with time. The transport equations and the numerica l choices for time and space discretization in finite elements are des cribed prior to developing two alternative formulations for dealing wi th partially dry elements. Finally, we depict two typical applications of the software: the simulation of sedimentation in the intake of a p ower plant qualitatively validated by comparing numerical results obta ined from SUBIEF with those from a physical model, and a simulation of heavy metal adsorption/desorption on to sediment particles in a fluvi al flow which are subsequently deposited and resuspended. (C) 1998 Joh n Wiley & Sons, Ltd.