HYDRODYNAMIC SIMULATION BASED ON A FAST PARTICLE LEVEL SET METHOD

摘要

In this paper, we will apply the fast particle level set method (Enright et al., 2002) to the free surface tracking in solving the incompressible Reynolds equations with free surface boundary conditions. To save computational time, the semi-Langrangian technique (Strain, 1999) is employed in solving the level set equation and the fast-marching technique (Sethian, 1996) is adopted in the reinitialization of the level set function. In the hydraulic model, the Reynolds equations are closed by the k-ε turbulence model and the BICG technique is used to solve the Poisson equation. The established numerical flow model is verified by comparison of the simulated result of water pressure with measured data on a vertical wall standing in the midway of water column collapsing.