泥石流常常导致严重的灾难。黏性泥石流的运动符合宾汉流体运动规律,认为黏性泥石流遵循可压缩流Navier-Stokes方程,建立了基于无网格粒子算法的SPH数值模型。对SPH法的基本原理、核函数及控制方程离散格式、边界处理及数值解法等进行了介绍。在此基础上分析研究了黏性泥石流堆积运动过程,并与试验结果及其他理论方法得到的结果进行了比较,表明该方法能够模拟黏性泥石流的堆积运动过程。 Debris flow often leads to serious disasters. The motion of viscous debris flow accords with the motion law of Bingham fluid. According to the compressible flow Navier-Stokes equation, the viscous debris flow is considered and SPH numerical model based on meshless particle algorithm is established. The basic principles of the SPH method, the discrete form of the kernel function and governing equations, the boundary treatment and the numerical solution are introduced. On this basis, the movement process of viscous debris flow was analyzed and compared with the experimental results and the results obtained by other theoretical methods. The results show that this method can simulate the movement process of viscous debris flow.