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A New Boundary Condition for Three-Dimensional Lattice Boltzmann Simulations of Capillary Filling in Rough Micro-Channels

Published online by Cambridge University Press:  20 August 2015

Alessandro De Maio*
Affiliation:
Numidia s.r.l, via Berna 31, 00144 Roma, Italy
Silvia Palpacelli*
Affiliation:
Numidia s.r.l, via Berna 31, 00144 Roma, Italy
Sauro Succi*
Affiliation:
Istituto Applicazioni Calcolo, CNR, via dei Taurini 19, 00185 Roma, Italy Freiburg Institute for Advanced Studies, School of Soft Matter Research, Albertstr. 19, 79104 Freiburg im Breisgau, Freiburg, Germany
*
Corresponding author.Email:[email protected]
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Abstract

A new boundary condition, aimed at inhibiting near-wall condensation effects in lattice Boltzmann simulations of capillary flows in micro-corrugated channels, is introduced. The new boundary condition is validated against analytical solutions for smooth channels and demonstrated for the case of three-dimensional microflows over randomly corrugated walls.

Type
Research Article
Copyright
Copyright © Global Science Press Limited 2011

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