Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1899615 | Physica D: Nonlinear Phenomena | 2013 | 11 Pages |
Abstract
We provide rigorous justification for the classical Wenzel equation for the roughness enhanced effective contact angle. The minimization of the total surface energy is reformulated into a variational problem. As the size of the roughness becomes small, we show convergence of the minimizer. The limiting minimizer and effective contact angle are explicitly calculated to verify the Wenzel equation.
Keywords
Related Topics
Physical Sciences and Engineering
Mathematics
Applied Mathematics
Authors
Xinfu Chen, Xiao-Ping Wang, Xianmin Xu,