Coupling of an SPH-based solver with a multiphysics library

A two-way coupling between the Smoothed Particle Hydrodynamics-based (SPH) code with a multiphysics library to solve complex fluid-solid interaction problems is proposed. This work provides full access package for use of this by releasing source code, completed guidelines its compilation and utilization, self-contained template setups practical uses novel implemented features, provided here. The presented expands applicability two different solvers allowing simulate fluids, multibody systems, collisions frictional contacts using either non-smooth contact (NSC) or smooth (SMC) methods, all integrated under same framework. fluid solver open-source DualSPHysics, highly optimised simulating free-surface phenomena structure interactions, uniquely positioned as general-purpose Computational Fluid Dynamics (CFD) software GPU-accelerated solver. Mechanical systems that comprise collision detection and/or dynamics are solved Project Chrono, which Discrete Element Method (DEM). Therefore, SPH-DEM approach can manage interactions relative constraints, springs, mechanical joints. Program title: DualSPHysics-Chrono CPC Library link program files: https://doi.org/10.17632/g2cc37dw4f.1 Licensing provisions: DualSPHysics DSPHChronoLib GNU Lesser General Public License (LGPL); Chrono BSD-3-Clause License. Programming language: C++ CUDA Nature problem: simulation turbulent flows in fixed floating structures essential address typical marine coastal engineering problems. Hydrodynamics method particularly suitable solving type nonlinear However, application usually requires restrictions structural elements (spherical joints, hinges, springs), well correct solid objects. In these cases, it necessary combine SPH other numerical methods allow performing simulations. Solution method: an combines Lagrangian approximation solids GPU-optimized implementation allows efficient fluid-structure Whereas DEM includes numerous constraints mechanisms. capabilities both models free Additional comments including unusual features: version (Compute Unified Device Architecture) exploit parallelism NVIDIA graphics processing units (GPUs).