A Study Of The Interaction Between Wave And Structure Based On SPH Method

Smoothed Particle Hydrodynamics method is a kind of pure Lagrangian and mesh-free computational method.The method has significant advantages in simulating the fluid flows with large deformation or complex boundary.It has been widely used in the research of surface water flows,and it has good prospects for development.In addition,the dam-break problems and the interactions between water and structure have also made rapid development in recent years.The main purpose of this paper is the basic theory and research method in SPH basic equations especially the basic kernel function equation and the corresponding numerical processing technology,research was carried out by using the method for dam break problems,typical of wave structure interaction problems.SPH method is used to simplify the examples of numerical simulation of dam break problems under different conditions were simulated,analyzed the structure of the dam downstream effects of different flow field layout form,the structure and solid wall and the pressure.At the same time to simulate the interaction of three-dimensional wave structure by using the methods to show the full wave interaction with the form and structure,and impact pressure of dikes and structures have been studied in different wave,under the condition of dike impact on structures and dikes and influence law.