【目的】Poiseuille流动广泛存在于工业生产中，低雷诺数管道流动就是典型的例子之一，而管道运输是深海采矿的关键环节，Poiseuille流动的研究可以指导更复杂的管道运输问题的研究。【方法】移动粒子半隐式方法（Moving Particle Semi-Implicit Method，MPS）是一种无网格拉格朗日方法，用拉格朗日粒子携带空间流场的信息，规避了网格大变形可能会对计算结果产生的影响，MPS方法已广泛应用于具有自由表面的流动、多相流等流动。在MPS方法求解器MLParticle-SJTU的基础上，建立恒流量入口边界条件和无滑移壁面边界条件，对二维管道中不同雷诺数下的不可压缩牛顿流体Poiseuille流动进行模拟研究。【结果】模拟结果表明充分发展后，流动的速度剖面呈现抛物线型，且不同雷诺数下，数值模拟结果的速度峰值与理论结果相比误差都在5%之内，【结论】说明在所提出的边界条件下MPS方法模拟二维Poiseuille流动的有效性和可靠性。
[Objectives] Poiseuille flow is widely existed in industry, such as low Reynolds number pipeline flow, and pipeline transport is the key stage in deep-sea mining. The study of Poiseuille flow has guiding significance for the study of pipeline transport which is more comlex. [Methods] Moving Particle Semi-Implicit Method (MPS) is a meshless Lagrangian method, which uses Lagrangian particles to carry flow field information, so it can avoid the influence of mesh deformation on the calculation results. MPS has been widely applied in flows with free surface, multiphase flows and other flows. The meshless solver MLParticle-SJTU, which is developed independently based on MPS method, is used to simulate the Poiseuille flow in two-dimensional pipes under different Reynolds Numbers, by establishing inflow boundary and no-slip wall boundary, and the fluid is an incompressible Newtonian fluid. [Results] The simulation results show that after full development, the flow velocity profile is parabolic, and the error of the numerical simulation results is within 5% compared with the theoretical results under different Reynolds Numbers. [Conclusion] This indicates that it is effective and reliable that use the MPS method to simulate two-dimensional Poiseuille flows under the boundary conditions proposed in this paper.