AWK_JCP_2007

A Stochastic Boundary Forcing for Dissipative Particle Dynamics

 

Altenhoff A., Walther J.H., Koumoutsakos P., Journal of Computational Physics, 225, 1125-1136, 2007

 

ABSTRACT

The method of dissipative particle dynamics (DPD) is an effective, coarse grained model of the hydrodynamics of complex fluids. DPD simulations of wall-bounded flows are however often associated with spurious fluctuations of the fluid properties near the wall. We present a novel stochastic boundary forcing for DPD simulations of wall-bounded flows, based on the identification of fluctuations in simulations of the corresponding homogeneous system at equilibrium. The present method is shown to enforce accurately the no-slip boundary condition, while minimizing spurious fluctuations of material properties, in a number of benchmark problems. (c) 2007 Elsevier Inc. All rights reserved.

 

DOI: 10.1016/j.jcp.2007.01.015

 

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