Author(s)

P. Zegeling, M. Borsboom & J. van Kester

Abstract

We investigate the use of a boundary-fitted moving adaptive grid technique in vertical direction for the numerical modeling of transport in multi-dimensional shallow-water applications. The difficulty with such modeling is that both the non-horizontal bottom and the free water surface, as well as nearly-horizontal regions of high gradient are to be represented accurately. The results that we present show that by using a moving grid that adapts automatically to the solution and is fitted to both the bottom and the free surface, it is possible in principle to model all relevant transport processes. Introduction In stratified flows in estuaries and lakes, the exchange of matter in the ver- tical direction plays a crucial role in water quality stu

Keywords