MSc graduation Frederieke DoornMarch 2014
Svašek Hydraulics MSc graduation student Frederieke Doorn had her defence on the interesting topic “2D or not 2D”. A theoretical framework has been developed in order to judge in which particular instances a 2D depth-averaged hydrodynamic model is sufficient to simulate flow processes in continental shelf seas or when a 3D model is required for accurate results. By analytical solutions it is examined under which conditions the reduction from 3D to 2DH has a significant effect on the water level and the depth averaged current velocity. Combinations of high velocity and large water depth can lead to significant differences between 3D and 2DH results. The findings from the analytical solutions are verified by numerical simulations.