Lattice Boltzmann modelling of droplets on chemically heterogeneous surfaces

Journal article

We use a three-dimensional lattice Boltzmann model to investigate the spreading of mesoscopic droplets on homogeneous and heterogeneous surfaces. On a homogeneous substrate the base radius of the droplet grows with time as t 0.28 for a range of viscosities and surface tensions. The time evolutions collapse onto a single curve as a function of a dimensionless time. On a surface comprising of alternate lyophobic and lyophilic stripes the wetting velocity is anisotropic and the equilibrium shape of the droplet reflects the wetting properties of the underlying substrate. © 2003 Elsevier B.V. All rights reserved.

Authors: Dupuis, A; Yeomans, J

• Journal: Future Generation Computer Systems
• Volume: 20
• Issue: 6 SPEC. ISS.
• Pages: 993-1001
• Publication date: 2004-08-01
• DOI: 10.1016/j.future.2003.12.012
• ISSN: 0167-739X
• Language: English
• Keywords: Patterned surfaces; Lattice Boltzmann model; Droplet spreading