Non-hydrostatic finite element modeling for tsunami
01 / 2007 - onbekend
The tsunami in December 2004 set the starting point for the establishment of a German-Indonesian Tsunami Early Warning System (GITEWS). The unstructured grid tsunami propagation and inundation model TsunAWI is under development at Alfred-Wegener-Institute (AWI), Bremerhaven. For either scenario computations as well as the early warning simulation support,. This model is based on the hydro-static pressure assumption. Depending on the conditions this assumption might yield inaccuracies with respect to the propagation and shoaling of a tsunami. At the environmental fluid mechanics section of the TUDelft very efficient methods have been developed for the representation of non-hydrostatic effects. This is now implemented in TsunAWI. In addition also flooding and drying procedures are under development for efficient implementation in this non-conforming finite element model.