Metastable contact angles and self-propelled drop movement on chemically heterogeneous surfaces by a mean-field lattice Boltzmann model

Article

Abstract

Contact angle behaviors on heterogeneous surfaces were studied by the mean-field free-energy lattice Boltzmann method. Our results suggest that the relation for contact angles on heterogeneous surfaces proposed by Israelachvili and Gee [Langmuir, 5, 288 (1989)] is in general not valid for the case examined. Droplet self-propelled movement on chemically patterned surfaces was also modeled by means of a local surface tension gradient.

Keywords

Contact Angle European Physical Journal Special Topic Patch Size Lattice Boltzmann Method Heterogeneous Surface 

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© EDP Sciences and Springer 2009

Authors and Affiliations

  1. 1.School of Engineering, Laurentian UniversityOntarioCanada
  2. 2.National Key Laboratory of Transient Physics, Nanjing University of Science and TechnologyNanjingChina
  3. 3.Department of Mechanical Engineering, Schulich School of Engineering, University of CalgaryNanoscale Technology and Engineering LaboratoryCalgaryCanada

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