<%namespace name="tools" file="tools.tex"/>

This purely hypothetical test combines three specific functionalities of XBeach: curvilinear grids, discharges and drifters. The model is basicly an odd-shaped bathtub with a single discharge location at the left boundary. The bathtub is filled by the discharged water, indicated by the increasing water levels (colored background). The bathtub is approximately 70m x 70m. Considering that, the discharge of $50m^3/s$ is rather large. Every 10 seconds, two drifters are released just before the discharge opening. One of the two drifters is released at the upper boundary of the opening, the other at the lower boundary. The entire path a single drifter has followed at a certain moment in time is plotted in \autoref{fig:Drifters_default_fig1}. Two large eddies driven by the large discharge are revealed by these paths.

${tools.image('Drifters/default/', 'fig1.eps', 'Drifter paths after 50, 100, 150 and 450 seconds')}