中文摘要：

格子玻尔兹曼方法是一种新的流体数值计算方法,它具有形式简单、相互作用局域、完全并行、边界条件易于施加等特点。基于此方法建立了粒子在涡流中运动的二维模型,其中粒子被看作刚性小球,涡流由开有出口和入口的空腔产生。研究中发现粒子的运动轨迹呈螺旋线状,随着运动轨迹半径逐渐增大最终流出涡流,粒子在涡流中的运动时间与其初始位置相关,粒子距涡流中心越近粒子的运动时间越长。此模型也可以用来研究血细胞在血管中的运动。

英文摘要：

：On the basis of Lattice Boltzmann method, a dynamical model is proposed for the simulation of particle movement in vortex flows. In this model, a particle is treated as a rigid particle. By this method, we have simulated the movement of a particle starting to move from different positions in a vortex flow. The results show that the moving path of the particle appears to be a spiral and it always flows out from the export. If the particle is involved into the vortex, it will take a long time to flow out.