title: Single Droplet on Micro Square-Post Patterned Surfaces - Theoretical Model and Numerical Simulation.
abstract: In this study, the wetting behaviors of single droplet on a micro square-post patterned surface with different geometrical parameters are investigated theoretically and numerically. A theoretical model is proposed for the prediction of wetting transition from the Cassie to Wenzel regimes. In addition, due to the limitation of theoretical method, a numerical simulation is performed, which helps get a view of dynamic contact lines, detailed velocity fields, etc., even if the droplet size is comparable with the scale of the surface micro-structures. It is found that the numerical results of the liquid drop behaviours on the square-post patterned surface are in good agreement with the predicted values by the theoretical model.
authors.affiliation: Department of Mechanics and Engineering Science, Fudan University, Shanghai, 200433, P.R. China.
authors.forename: Y Q
authors.initials: YQ
authors.lastname: Zu
authors.affiliation: Faculty of Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK.
authors.forename: Y Y
authors.initials: YY
authors.lastname: Yan