SPH (Smooth Particle Hydrodynamics) simulations are a numerical method to solve the hydrodynamic equations (for the movement of liquids). They have several advantages over other methods, such as:
– Smooth Particle Hydrodynamics (SPH) is based on a Lagrange method, which means that the coordinates used move with the fluid. This allows a better resolution of flow instabilities and shock waves, as well as the description of free surfaces.
– SPH simulations are mesh-free, meaning they do not require a grid or mesh to discretize space. The pleasant treatment of complex geometries as well as moving solids in the liquid and free surfaces.
– The SPH equations are conservative, that is, they conserve the mass, momentum, and energy of the fluid. This improved the accuracy and stability of the simulations.
SPH simulations are used in many disciplines of science and engineering. In addition to engineering applications, including in astrophysics, ballistics and tsunami calculations. They are a powerful and flexible way to model fluids and solids.