期刊
JOURNAL OF COMPUTATIONAL PHYSICS
卷 207, 期 1, 页码 114-128出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcp.2005.01.006
关键词
DPD; boundary conditions; no-slip; slip; atomistic; stochastic MD
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.
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