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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 ,
Silvia Palpacelli  and
Sauro Succi
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:demaio.a@gmail.com
Email:silviapalpacelli@gmail.com
Email:succi@iac.rm.cnr.it
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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.

Keywords

47.11.-j47.55.Ca47.61.-kMicrofluidicscapillary flowslattice Boltzmann simulation
Type
Research Article
Information
Communications in Computational Physics , Volume 9 , Issue 5 , May 2011 , pp. 1284 - 1292
Copyright
Copyright © Global Science Press Limited 2011

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