Author(s): A. Larese; F. Salazar; I. Iaconeta; R. Rossi; E. Onate

Linked Author(s): Fernando Salazar González

Keywords: Particle finite element method; Material point method; Free surface flows; Lagrangian simulation

Abstract: Two different particle methods have been used and compared in this work for the analysis of free surface flows: the Particle Finite Element Method (PFEM) and the Material Point Method (MPM). Both methods are based on the continuum mechanics framework and solve the governing equations in an updated Lagrangian form. While PFEM is a Lagrangian technique which uses remeshing and an alpha shape method to track the free surface, MPM used two different discretizations: a fixed background mesh and a set of moving particles, the Material Points (MPs). In MPM the mesh is used for the solution of the governing equations while the MPs store the historical information and acts as moving integration points. The two techniques are used for the simulation of Newtonian and non Newtonian free surface flows with the final objectives of using them in natural disaster scenarios.

DOI: https://doi.org/10.3850/978-981-11-2731-1_287-cd

Year: 2018