Ludwigslust Palace
About ElbAlarm
This historical animation shows a practical application of the code ElbAlarm to simulate a toxic accident in the Elbe river using a quasi-two-dimensional (Q2D) numerical model of longitudinal matter transport in rivers. The model differentiates between a main channel wherein matter is transported via advection and longitudinal dispersion, and so-called dead zones near the banks which receive dissolved matter by cross-sectional turbulent diffusion from the main channel, and release this matter into the main channel when there the concentration is already low. This mimics the so-called long-tail effect observed in many natural and laboratory experiments. This model has been designed and realized in 1996, in cooperation with Stefan Zabanski in Hamburg and Gisbert Stoyan in Budapest.