Application of Tunable-Slip Boundary Conditions in Particle-Based Simulationsстатья

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Дата последнего поиска статьи во внешних источниках: 19 сентября 2015 г.

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[1] Application of tunable-slip boundary conditions in particle-based simulations / J. Zhou, J. Smiatek, E. S. Asmolov et al. // High Performance Computing in Science and Engineering '14. — 2015. — Vol. 13. — P. 19–30. Compared to macroscopic systems, fluids on the micro- and nanoscales have a larger surface-to-volume ratio, thus the boundary condition becomes crucial in determining the fluid properties. No-slip boundary condition has been applied successfully to wide ranges of macroscopic phenomena, but its validity in microscopic scale is questionable. A more realistic description is that the flow exhibits slippage at the surface, which can be characterized by a Navier slip length. We present a tunable-slip method by implementing Navier boundary condition in particle-based computer simulations (Dissipative Particle Dynamics as an example). To demonstrate the validity and versatility of our method, we have investigated two model systems: (i) the flow past a patterned surface with alternating no-slip/partialslip stripes and (ii) the diffusion of a spherical colloidal particle. [ DOI ]

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