Towards Better Integrators for Dissipative Particle Dynamics Simulations

Дата и время публикации : 2000-10-16T14:47:35Z

Авторы публикации и институты :
Gerhard Besold (Department of Chemistry, Technical University of Denmark, Lyngby, Denmark)
Ilpo Vattulainen (Department of Chemistry, Technical University of Denmark, Lyngby, Denmark)
Mikko Karttunen (Max Planck Institute for Polymer Research, Mainz, Germany)
James M. Polson (Department of Physics, University of Prince Edward Island, Charlottetown, PEI, Canada)

Ссылка на журнал-издание: Phys. Rev. E 62/6 (2000) R7611-7614
Коментарии к cтатье: 4 pages, 3 figures, 2 tables, accepted for publication in Phys. Rev. E (Rapid Communication), tentative publication issue: 01 Dec 2000
Первичная категория: cond-mat.soft

Все категории : cond-mat.soft, cond-mat.stat-mech

Краткий обзор статьи: 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.

Category: Physics