Towards better integrators for dissipative particle dynamics simulations

Gerhard Besold, Ilpo Tapio Vattulainen, Mikko Karttunen, James M. Polson

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    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.
    Original languageEnglish
    JournalPhysical Review E. Statistical, Nonlinear, and Soft Matter Physics
    Volume62
    Issue number6
    Pages (from-to)R7611-R7614
    ISSN1063-651X
    DOIs
    Publication statusPublished - 2000

    Bibliographical note

    Copyright (2000) American Physical Society

    Keywords

    • BOLTZMANN EQUATION

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