Transport coefficients of off-lattice mesoscale-hydrodynamics simulation techniques
arXiv:0804.2218 · doi:10.1103/PhysRevE.78.016706
Abstract
The viscosity and self-diffusion constant of particle-based mesoscale hydrodynamic methods, multi-particle collision dynamics (MPC) and dissipative particle dynamics (DPD), are investigated, both with and without angular-momentum conservation. Analytical results are derived for fluids with an ideal-gas equation of state and a finite-time-step dynamics, and compared with simulation data. In particular, the viscosity is derived in a general form for all variants of the MPC method. In general, very good agreement between theory and simulations is obtained.
12 pages, 9 figures
References in corpus (6)
- Simulation of Claylike Colloids
- Hydrodynamic and Brownian Fluctuations in Sedimenting Suspensions
- Transport properties controlled by a thermostat: An extended dissipative particle dynamics thermostat
- Particle-Based Mesoscale Hydrodynamic Techniques
- Relevance of angular momentum conservation in mesoscale hydrodynamics simulations
- Transport coefficients of dissipative particle dynamics with finite time step