Modelos Lagrangianos para la simulación de fluidos y su aplicación a la hidrodinámica marina

The Semi-Implicit Particle Movement (MPS) method, which is one of the most representative models of the Lagrangian models used in fluid simulation, is described in this work. Moreover, advantages and disadvantages of the MPS method are described: from the version based on the particle number density, the velocity divergence and the weakly compressible versions. Furthermore, to demonstrate the method capabilities, these versions are compared on the basis of the classical two dimensional dam-breaking problem. From these results, the differences on the pressure field distribution on several time steps and the pressure time histories on the wall impact zone are analyzed.