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A particle system is a technique in game physics, motion graphics, and computer graphics that uses many minute sprites, 3D models, or other graphic objects to simulate certain kinds of "fuzzy" phenomena, which are otherwise very hard to reproduce with conventional rendering techniques – usually highly chaotic systems, natural phenomena, or ...
N. -body simulation. In physics and astronomy, an N-body simulation is a simulation of a dynamical system of particles, usually under the influence of physical forces, such as gravity (see n -body problem for other applications). N -body simulations are widely used tools in astrophysics, from investigating the dynamics of few-body systems like ...
Smoothed-particle hydrodynamics ( SPH) is a computational method used for simulating the mechanics of continuum media, such as solid mechanics and fluid flows. It was developed by Gingold and Monaghan [2] and Lucy [3] in 1977, initially for astrophysical problems. It has been used in many fields of research, including astrophysics, ballistics ...
Dissipative particle dynamics ( DPD) is an off-lattice mesoscopic simulation technique [1] which involves a set of particles moving in continuous space and discrete time. Particles represent whole molecules or fluid regions, rather than single atoms, and atomistic details are not considered relevant to the processes addressed.
A particle filter's goal is to estimate the posterior density of state variables given observation variables. The particle filter is intended for use with a hidden Markov Model, in which the system includes both hidden and observable variables. The observable variables (observation process) are linked to the hidden variables (state-process) via ...
Barnes–Hut simulation. A 100-body simulation with the Barnes–Hut tree visually as blue boxes. The Barnes–Hut simulation (named after Josh Barnes and Piet Hut) is an approximation algorithm for performing an n -body simulation. It is notable for having order O ( n log n) compared to a direct-sum algorithm which would be O ( n2 ).
Multi-particle collision dynamics (MPC), also known as stochastic rotation dynamics (SRD), [1] is a particle-based mesoscale simulation technique for complex fluids which fully incorporates thermal fluctuations and hydrodynamic interactions. [2] Coupling of embedded particles to the coarse-grained solvent is achieved through molecular dynamics.
Computational materials science and engineering uses modeling, simulation, theory, and informatics to understand materials. The main goals include discovering new materials, determining material behavior and mechanisms, explaining experiments, and exploring materials theories. It is analogous to computational chemistry and computational biology ...
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