基于光滑粒子的流体仿真研究

Research of Fluid Simulation Based on Smoothed Particles

为了提高流体仿真的效果,设计了一种基于光滑粒子流体动力学(SPH)理论的流体模型.该模型根据实际粒子物理特性对流体进行建模,提出了一个采用预测松弛方法的流体仿真算法,在仿真过程中直接面向实现,对粒子运动速度进行松弛预测.经仿真实验证明,该模型能够满足流体粒子的物理特性,仿真效果具有真实感和稳定性,方法易于实现,提高了仿真效率.

In order to improve the effect of fluid simulation,a fluid model based on smoothed particle hydrodynamics（SPH） theory was designed,which was established according to the physical characteristics of actual fluid particles.A fluid simulation algorithm based on the prediction-relaxation method was proposed,by which the relaxation prediction for the particles＇ velocity was directly done in the simulation process.Simulation results showed that the model could meet the physical features of the fluid particles,and the algorithm,which is easy to implement,increased the sense of reality and stability of the simulation results and improved the simulation efficiency.