Simulation Of Sediment Based On Particle System

With the development of computer graphics, Computer graphics has become a solid theoretical basis for a fast, high-quality virtual reality simulation. Computer simulation of virtual reality has always been the research focus on computer graphics, the simulation of irregular structures or elements has been one of the most important research points on computer graphics. Nowadays, particle systems have been recognized as one of the most successful methods of irregular object simulation, its advantages are direct, effective and stable.The realistic of virtual reality is based on modeling, that is the reason why the simulation of irregular structures and elements become one of the most difficult research focus of computer graphics. Especially for the simulation of some natural phenomenon, such as fire,water,rain,snow and so on, such natural phenomena has its own random,fuzzy characteristics, making it difficult to be modeled using commonly used physical modeling technology. However, these appearances are important element in realistic image simulation, that's why the simulation of irregular things has become one of the hottest research points in computer graphics. But with all these difficulties, under the exploration of domestic and foreign scholars, a remarkable development had been achieved.This research is about Precipitation Simulation based on particle system, research point is the simulation of the chemical reaction which product sediment in liquid solution. On the one hand liquid flow drive the tiny particle of sediment with in, solving the phenomenon of fluid movement based on the famous Navier-Stokes Equation is the research point. By studying the currently available sediment model,analyzed the advantages and disadvantages, and base on it, I Propose a new model (GFS model) .The irregular object simulation is a difficult part of virtual reality, to simulate sediment is another even more difficult challenge. Using Navier-Stokes Equation we can simulate the real movement pattern, ensure Simulation accuracy. Force field grid is simple and intuitional. Using it can greatly reduce the complexity of the calculation of precipitation particles, increase calculation speed, it has important scientific significance and research value.