https://doi.org/10.1140/epjst/e2009-01013-y
Metastable contact angles and self-propelled drop movement on chemically heterogeneous surfaces by a mean-field lattice Boltzmann model
1
School of Engineering, Laurentian University, Sudbury, Ontario, P3E 2C6, Canada
2
National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing, 210094, China
3
Nanoscale Technology and Engineering Laboratory, Department of Mechanical Engineering, Schulich School of
Engineering, University of Calgary, Calgary, Alberta, T2N
2N4, Canada
Corresponding authors: This email address is being protected from spambots. You need JavaScript enabled to view it. This email address is being protected from spambots. You need JavaScript enabled to view it. This email address is being protected from spambots. You need JavaScript enabled to view it.
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.
© EDP Sciences, Springer-Verlag, 2009
