SPH
From MohidWiki
Smoothed-Particle Hydrodynamics is a computational technique to simulate fluid dynamics using a mesh-free lagrangian-tracer approach. The mesh-free lagrangian tracers can represent any property, from granulate to continuum in nature, from sand particles, to density, to fluid momentum and vorticity. SPH estimates any property value on any point of the domain based on the lagrangian tracers in the vicinity, weighted by a kernel function.
