11:30 AM - 11:45 AM
[STT47-04] Multi scale tsunami simulation from earthquake initiation to tsunami run-up into the coastal area and high performance particle simulator
Keywords:Tsunami, Crustal deformation, Large Scale Computation
When modeling the entire city with a high fidelity particle model, one must deal with an enormous number of degrees of freedom, and implementation of highly parallel calculation is indispensable. In this paper, we developed a computational algorithm with high parallelization efficiency for the liquid spreading phenomenon over a flat plane problem, for later apply on tsunami run-up simulation. In particular, we propose an expanding slice grid method with a dynamic load balancer to utilize maximum efficiency on memory utilization and computational speed.
At the end of this paper, high fidelity tsunami run-up simulation in Kochi City by the Expanding slice grid method were conducted, and the utility of the proposed method was discussed.