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SPH (Smoothed Particle Hydrodynamics) is a computational method to simulate fluid flows. It is a lagrangian method, used in different fields as astrophysics or oceanography.

SPH (Smoothed Particle Hydrodynamics) is a computational method to simulate fluid flows. It is a lagrangian method, used in different fields as astrophysics or oceanography. It was first developed by Gingold and Monanghan (1977) in an astrophysical context.

It relies on a discretization of the fluid in fluid elements, the particles. These particles are characterized by a "smoothing length" over which their physical properties are smoothed over the other particles laying within this length by a "kernel function". Kernel functions are typically cubic spline of Gaussian function.