Introduction
Within the finite element model package of Svašek Hydraulics, FINEL2D is the two-dimensional numerical flow model.
Based on the shallow water equations, FINEL2D simulates flow and transport processes in rivers and coastal waters. The finite element method offers almost unlimited flexibility in grid generation.
The models possibility for particle tracking gives a proper image of residence time and refreshment of the water in harbour basins and sheltered areas. FINEL2D contains a suitable procedure for drying and flooding of tidal flats. FINEL2D is linked directly to the wave model SWAN to count for wave driven currents and . Modules for calculation of both cohesive and non-cohesive sediment transport and the consequent changes in seabed level can be directly linked to the hydrodynamic model.
A special feature within the FINEL2D model is the sand - mud interaction module. This module calculates both the sand and mud fraction. Both fractions contribute to morphological change within the model. This model extends currently used morphodynamic models in a number of ways.
Firstly the erosion characteristics of sand and mud depend on the mud content at the bed surface. Secondly the temporal and spatial variations in mud content are taken into account. The bed composition varies due to erosion and deposition of sand and mud at the bed surface and mixing in the bed itself.
More information about the FINEL2D model and the modules can be found in the various pages on this website.