PRESSURE ANALYSIS OF DAM-BREAK AND WAVE-BREAKING BY SPH MODEL

Abstract

The Smoothed Particle Hydrodynamics (SPH) method is put forward to simulate dam-break and wave-breaking problem. The Lagrangian form of governing equations are solved by a two-step split scheme and the basic SPH formulations are employed to discretize the gradient and divergence operators in the equations. The SPH model is robust for tracking free surfaces by particles without numerical diffusion. The pressure characteristics are analyzed based on computations. It is shown that the dynamic pressure is very strong in the early stage of dam-break and wave-breaking but quickly settles down in the later stages.