TY - GEN
T1 - Splitting for highly dissipative smoothed particle dynamics
AU - Litvinov, S.
AU - Hu, X. Y.
AU - Adams, N. A.
PY - 2009
Y1 - 2009
N2 - The method of smoothed dissipative particle dynamics (SDPD) is a novel coarse grained method for simulation of complex fluids. It has some advantages over more traditional particles based methods (Espanol and Warren, Europhys. Lett. 30(4):191-196, 1995). But one of the problems common for particle based simulations of microfluid system takes place also for SDPD: it fails to realize Schmidt number of O(10 3) typical of liquids. In present paper we apply the implicit numerical scheme that allows significantly increase time step in SDPD and perform simulation for larger Schmidt number. Simulations using this methods show close agreement with serial solutions for Couette and Poiseuille flows. The results of benchmarks based on temperature control are presented. The dependence of self-diffusion coefficient D on kinematic viscosity is examined and found to be in agreement with empirical observations (Li and Chang, J. Chem. Phys. 23(3):518-520, 1955).
AB - The method of smoothed dissipative particle dynamics (SDPD) is a novel coarse grained method for simulation of complex fluids. It has some advantages over more traditional particles based methods (Espanol and Warren, Europhys. Lett. 30(4):191-196, 1995). But one of the problems common for particle based simulations of microfluid system takes place also for SDPD: it fails to realize Schmidt number of O(10 3) typical of liquids. In present paper we apply the implicit numerical scheme that allows significantly increase time step in SDPD and perform simulation for larger Schmidt number. Simulations using this methods show close agreement with serial solutions for Couette and Poiseuille flows. The results of benchmarks based on temperature control are presented. The dependence of self-diffusion coefficient D on kinematic viscosity is examined and found to be in agreement with empirical observations (Li and Chang, J. Chem. Phys. 23(3):518-520, 1955).
UR - http://www.scopus.com/inward/record.url?scp=84862574415&partnerID=8YFLogxK
U2 - 10.1007/978-90-481-2626-2_16
DO - 10.1007/978-90-481-2626-2_16
M3 - Conference contribution
AN - SCOPUS:84862574415
SN - 9789048126255
T3 - IUTAM Bookseries
SP - 207
EP - 218
BT - IUTAM Symposium on Advances in Micro- and Nanofluidics - Proceedings of the IUTAM Symposium on Advances in Micro- and Nanofluidics
T2 - IUTAM Symposium on Advances in Micro- and Nanofluidics
Y2 - 6 September 2007 through 8 September 2007
ER -