An Eulerian Scheme with Lagrangian particles for Solving Impact Pressure Caused by Wave Breaking

摘要

In this study, a new approach to solve fluid structure interaction problems is described. A methodology was developed, the CIP-SPH method, based on coupling the smoothed particle hydrodynamics (SPH) method for solid phase with the cubic interpolated pseudo-particle (CIP) method for both air and water phases, and results are presented using this new advanced modeling technique. In the proposed method, the solid interface is automatically captured by particles overlapping on fixed grids. Therefore, deformations and motions of coastal structures caused by wave breaking can be calculated with smoothness, efficiency and accuracy. Moreover, both Wagner type and Bagnold type impact pressures with entrained air are numerically and directly estimated using the proposed method. The proposed method simplifies direct numerical simulation of the impact pressure and interaction between wave breaking and coastal/offshore structures.