关键词: 粒子系统, 动力学, 实时模拟, 纹理映射

Abstract: This paper proposes an algorithm of combining particle system with physics dynamics，and stimulates flame and smoke particles in the air force and motion state relative accurately.In order to improve simulation speed and authenticity，linear expansion of particles is used similarly to achieve the effect of the diffusion of smoke，with the color changing reconstruction through the linear interpolation of real combustion flame color sampling.In rendering，sorting and Alpha blending particles are used to avoid the color saturation problems of traditional particle system，and texture mapping and Billboard technology are combined to draw the scene quickly.

Key words: particle system, dynamics, real-time simulation, texture mapping