Development of an MPS Method for Shallow Water Equation and Impinging Jet Simulation

Abstract

In fluid machines, oil is injected to prevent gas leakage from the gaps between the rotors and to prevent deterioration due to friction. The oil becomes a thin film due to the collisional jet, which is difficult to simulate accurately with the particle method that solves the three-dimensional Navier-Stokes equations. In this study, an MPS Method for Shallow Water Equation incorporating a particle splitting technique is developed. Simulation of a dam collapse problem was performed, and the result was in good agreement with the experiment. In addition, a thin film flow produced by a collisional jet was simulated.