  DualSPHysics is a weakly compressible smoothed particle hydrodynamics (SPH)
Navier-Stokes solver initially conceived to deal with coastal engineering
problems, especially those related to wave impact with coastal structures.
Since the first release back in 2011, DualSPHysics has shown to be robust and
accurate for simulating extreme wave events along with a continuous improvement
in efficiency thanks to the exploitation of hardware such as graphics
processing units (GPUs) for scientific computing or the coupling with wave
propagating models such as SWASH and OceanWave3D. Numerous additional
functionalities have also been included in the DualSPHysics package over the
last few years which allow the simulation of fluid-driven objects. The use of
the discrete element method (DEM) has allowed the solver to simulate the
interaction among different bodies (sliding rocks, for example), which provides
a unique tool to analyse debris flows. In addition, the recent coupling with
other solvers like Project Chrono or MoorDyn has been a milestone in the
development of the solver. Project Chrono allows the simulation of articulated
structures with joints, hinges, sliders and springs and MoorDyn allows
simulating moored structures. Both functionalities make DualSPHysics one of the
meshless model world leaders in the simulation of offshore energy harvesting
devices. Lately, the present state of maturity of the solver goes beyond single
phase simulations, allowing multi-phase simulations with gas-liquid and a
combination of Newtonian and non-Newtonian models expanding further the
capabilities and range of applications for the DualSPHysics solver. These
advances and functionalities make DualSPHysics a state-of-the-art meshless
solver with emphasis on free-surface flow modelling.
