A new method to impose no-slip boundary conditions in dissipative particle dynamics

被引：190

作者：

Pivkin, IV ^{[1
]}

Karniadakis, GE ^{[1
]}

机构：

[1] Brown Univ, Div Appl Math, Providence, RI 02912 USA

来源：

JOURNAL OF COMPUTATIONAL PHYSICS | 2005年 / 207卷 / 01期

基金：

美国国家科学基金会;

关键词：

DPD; boundary conditions; no-slip; slip; atomistic; stochastic MD;

D O I：

10.1016/j.jcp.2005.01.006

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Dissipative particle dynamics (DPD) is a potentially very effective approach in simulating mesoscale hydrodynamics. However, because of the soft potentials employed, the simple no-slip boundary conditions are difficult to impose. In this work, we first identify some of these difficulties and subsequently we propose a new method, based on an equivalent force between wall- and DPD-particles, to impose boundary conditions. We demonstrate the validity of this approach for steady problems (Poiseuille flow, lid-driven cavity) as well as for the unsteady oscillating flow over a flat plate. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：114 / 128

页数：15

共 19 条

[1] Kinetic boundary conditions in the lattice Boltzmann method [J].