Numerical modeling of free surface flows with SPH method

The smoothed particle hydrodynamics(SPH) is a relatively new method,which has advantages in dealing with complicated free surfaces and nonlinear breaking waves.The Navier-Stokes(N-S) equations of Lagrangian form are solved.In order to improve the computational precision,two types of particles are used to simulate the wall,and the improvements have been implemented to handle turbulence,fluid viscosity and density.Two computation cases of the wave′s propagation,transformation,breaking and the fluid-structrue interactions are compared with other literatures.It is a foundation of our SPH code for further extension and application.