Author(s)

R.V. Pearson, D.M. Causon & C.G. Mingham

Abstract

Progress on the development of new modelling methodologies to simulate environmental flows in two-dimensions is presented. First, a generalised Cartesian meshing methodology is developed whereby grids may be generated for two-dimensional multiply-connected regions of arbitrary complexity. The meshing technique is based on a hierarchical quadtree data structure and is also interactive, allowing the user considerable flexibility in the grid cell distribution through mesh refinement techniques. Of note, is that the grid generation procedure utilises a cut-cell approach which allows the domain to be cut out of the resulting quadtree Cartesian mesh, thus also providing a boundary-fitted

Keywords