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

Jiajia Zhou (), Jens Smiatek, Evgeny S. Asmolov, Olga I. Vinogradova and Friederike Schmid ()
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Jiajia Zhou: Johannes Gutenberg-Universität Mainz, Institut für Physik
Jens Smiatek: Universität Stuttgart, Institut für Computerphysik
Evgeny S. Asmolov: Russian Academy of Science, A.N. Frumkin Institute of Physical Chemistry and Electrochemistry
Olga I. Vinogradova: Russian Academy of Science, A.N. Frumkin Institute of Physical Chemistry and Electrochemistry
Friederike Schmid: Johannes Gutenberg-Universität Mainz, Institut für Physik

A chapter in High Performance Computing in Science and Engineering ‘14, 2015, pp 19-30 from Springer

Abstract: Abstract 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/partial-slip stripes and (ii) the diffusion of a spherical colloidal particle.

Keywords: Colloidal Particle; Couette Flow; Slip Length; Dissipative Particle Dynamics; Small Length Scale (search for similar items in EconPapers)
Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-10810-0_2

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DOI: 10.1007/978-3-319-10810-0_2

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