Research Of Adaptive Particle Fluid Simulation Based On Physical Method

In recent years,the computing power of computers has become stronger and stronger,and the computer animation technology has also shown an explosive growth.In computer animation technology,fluid animation technology has attracted more and more researchers because of its high complexity.Physical-based fluid simulation has a great dependence on numerical calculation,and the improvement of computational ability is of great help to numerical calculation in physical simulation.Compared with other methods of fluid simulation,the particle method of fluid simulation needs more particles to achieve more accurate resolution.The increase of the number of particles leads to more computational resources.In this paper,the particle fluid simulation method based on smooth particle hydrodynamics is mainly studied and improved.In this paper,an adaptive particle fluid simulation method based on smooth particle hydrodynamics(SPH)model is proposed.The basic particle simulation method is improved,and the fluid simulation is carried out by using particles with different radius,instead of using the same particle,the adaptive rule of particle radius is proposed.The particle search method and the calculation method of particle radius in the adaptive fluid simulation method are introduced.In order to repair the dissipation of particle numerical calculation and increase the detailed simulation of fluid,the vorticity calculation is integrated into the adaptive fluid particle simulation method.Finally,the proposed method is applied to the mixed model of multi-phase fluid simulation.Finally,the proposed adaptive particle fluid simulation method is implemented.The flow chart and module structure of the adaptive particle fluid simulation method are designed and implemented.The results are compared with the previous particle fluid simulation methods.Through the analysis of the experimental results,it is proved that the self-adaptive particle method proposed in this paper can greatly improve the computational efficiency of fluid simulation while guaranteeing the simulation resolution,and also has a good effect on the simulation of fluid detail area.