TY - JOUR
T1 - Towards better integrators for dissipative particle dynamics simulations
AU - Besold, G.
AU - Vattulainen, I.
AU - Karttunen, M.E.J.
AU - Polson, J.M.
PY - 2000
Y1 - 2000
N2 - 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.
AB - 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.
U2 - 10.1103/PhysRevE.62.R7611
DO - 10.1103/PhysRevE.62.R7611
M3 - Article
VL - 62
SP - R7611-1/4
JO - Physical Review E: Statistical, Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
JF - Physical Review E: Statistical, Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
SN - 1063-651X
IS - 6
ER -