Valencia-Farfán, Richard

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    Implementación de una malla triangular no estructurada para Puerto Rico y zonas adyacentes y aplicación del modelo SELFE (Semi implicit finite element Eulerian-Lagragian) para simular el tsunami de 1918 en Puerto Rico y otros escenarios locales
    (2012-05) Valencia-Farfán, Richard; Huérfano-Moreno, Víctor A.; College of Arts and Sciences - Sciences; Mercado, Aurelio; Acuña Fernández, Edgar; Department of Mathematics; Canals Silander, Miguel
    According to geological and historical records, the coast of Puerto Rico was hit by victim of tsunamis in the past, which caused great devastation. One of the most recent, and we have a historical measurements occurred in October 11, 1918. In this work we have simulated the tsunami of 1918 using the hydrodynamic model SELFE (Semi-Implicit Eulerian-Lagrangian Finite-Element Model). This model based on finite elements requires an unstructured mesh that has been created for Puerto Rico and adjacent islands. In addition we have simulated six scenarios of active faults around Puerto Rico and results have been compared with those of the MOST model in the same scenarios. Among the most important results we have: • Simulations with models using unstructured meshes like SELFE allow easier simulation than models using structured meshes, due to the better ability of unstructured grids to adapt to the very irregular of steep bathymetry of topography around Puerto Rico. • The use of a finite element mesh coupled with the parallel version of SELFE allows for faster execution of the tsunami scenarios compared with MOST model • The results from the 1918 tsunami simulation obtained with SELFE are in agreement with the historical data reported by Reid and Taber.