Boundary models in DPD
Boundary models in DPD
复制标题
DOI：
10.1142/s0129183198001199
复制
发表时间：
1998-12-01
影响因子：
1.9
通讯作者：
Pagonabarraga, I
中科院分区：
文献类型：
--
作者：
Revenga, M;Zúñiga, I;Pagonabarraga, I
我们提出了一个模型来处理固体边界的DPD流体。基本思想是通过假设一层DFD颗粒粘在边界上来模拟粘边界条件。通过采取这一层的连续极限，有效的耗散和随机力的流体DPD颗粒上得到。边界模型进行了测试，通过模拟的平面Couette流，它允许的性能vicosimetric测量。我们分析的条件，确保一个适当的坚持边界条件的不可穿透的墙壁，与以前的方法相比。
We present a model for treating solid boundaries of a DPD fluid. The basic idea is to model the stick boundary conditions by assuming that a layer of DFD particles is stuck on the boundary. By taking a continuum limit of this layer effective dissipative and stochastic forces on the fluid DPD particles are obtained. The boundary model is tested by a simulation of planar Couette flow which allows the performance of vicosimetric measurements. We analyze the conditions that ensure a proper stick boundary condition for an impenetrable wall, comparing with previous methods used.