Smoothed Particle Hydrodynamics (SPH) is a computational method used for simulating fluid flows. It represents fluids as a collection of particles, each carrying properties like mass, velocity, and pressure. These particles interact with each other based on their distance, allowing for the modeling of complex fluid behaviors without the need for a fixed grid. SPH is particularly useful in scenarios where traditional methods struggle, such as in free-surface flows or when dealing with large deformations. It has applications in various fields, including astrophysics, engineering, and computer graphics, making it a versatile tool for fluid dynamics simulations.