Coupling an SPH-based solver with an FEA structural solver to simulate free surface flows interacting with flexible structures

This work proposes a two-way coupling between Smoothed Particle Hydrodynamics (SPH) model-based named DualSPHysics and Finite Element Analysis (FEA) method to solve fluid–structure interaction (FSI). Aiming at having computationally efficient solution via spatial adjustable resolutions for the two phases, SPH-FEA herein presented implements Euler–Bernoulli beam model, based on simplified model that incorporates axial flexural deformations, introduce solid solver in framework. approach is particularly functional very precise slender elements undergoing large displacements, deformations can also be experienced by structural due non-linear FEA implementation co-rotational formulation. In this coupling, structure discretised SPH domain using boundary particles which forces exerted fluid phases are computed. Such passed over updates shape and, finally, particle positions subsequently reshuffled represent deformed each time step. The validated against four reference cases, prove as accurate other approaches literature.