Study on fluid-structure coupling of SPH method

Based on DualSPHsics open source database, a numerical model of the boundary between fluid, moving body and solid wall is established by using smooth particle fluid dynamics method. In order to improve computing efficiency, the particles are distributed to different CPU cores to realize parallel computing. By solving the Riemann problem between particle pairs and iteratively updating the particle space position, the numerical simulation of the coupled motion is realized. Based on this model, the numerical simulation of floating bodies in nonlinear waves is selected, and the results show that the fluid-structure coupling simulation based on SPH method has good robustness.