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中文摘要：
在耗散粒子动力学（DPD）中旌加无滑移边界条件是较困难的，本文提出了一种新的处理方法来实现无滑移边界条件。通过选取合适的壁面与流体粒子之间的保守力系数可以控制近壁面区的粒子数，从而可以使密度波动降低至极小值，实现无滑移边界条件。通过该方法模拟泊肃叶流动求得的流体性质与通过使用Lees—Edwards边界条件模拟剪切流动所求得的流体性质一致，证明了该方法的可靠性。
英文摘要：
It is ditficult to impose the no-slip boundary conditions in Dissipative Particle Dynamics （DPD）. In this work, we proposed a new method to impose the boundary conditions. The density fluctuation of the fluid particles can be adjusted by setting different conservative force coefficients between the solid wall and the fluid particles. The no-slip boundary conditions can be imposed when the density fluctuation is the feeblest. We demonstrated the validity of this approach by comparing the fluid properties obtained by simulating the Poiseuille flow using the new method and shear flow using the Lees-Edwards boundary conditions, respectively.
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