Towards Better Integrators for Dissipative Particle Dynamics Simulations
Soft Condensed Matter
2009-10-31 v1 Statistical Mechanics
Abstract
Coarse-grained models that preserve hydrodynamics provide a natural approach to study collective properties of soft-matter systems. Here, we demonstrate that commonly used integration schemes in dissipative particle dynamics give rise to pronounced artifacts in physical quantities such as the compressibility and the diffusion coefficient. We assess the quality of these integration schemes, including variants based on a recently suggested self-consistent approach, and examine their relative performance. Implications of integrator-induced effects are discussed.
Cite
@article{arxiv.cond-mat/0010219,
title = {Towards Better Integrators for Dissipative Particle Dynamics Simulations},
author = {Gerhard Besold and Ilpo Vattulainen and Mikko Karttunen and James M. Polson},
journal= {arXiv preprint arXiv:cond-mat/0010219},
year = {2009}
}
Comments
4 pages, 3 figures, 2 tables, accepted for publication in Phys. Rev. E (Rapid Communication), tentative publication issue: 01 Dec 2000