How water droplets evaporate on a superhydrophobic substrate

Share/Save/Bookmark

Gelderblom, Hanneke and Marin, Alvaro G. and Nair, Hrudya and Houselt van, Arie and Lefferts, Leon and Snoeijer, Jacco H. and Lohse, Detlef (2011) How water droplets evaporate on a superhydrophobic substrate. Physical Review E: Statistical, nonlinear, and soft matter physics, 83 (2). 026306. ISSN 1539-3755

[img]
Preview
PDF
529Kb
Abstract:Evaporation of water droplets on a superhydrophobic substrate, on which the contact line is pinned, is investigated. While previous studies focused mainly on droplets with contact angles smaller than 90°, here we analyze almost the full range of possible contact angles (10°–150°). The greater contact angles and pinned contact lines can be achieved by use of superhydrophobic carbon nanofiber substrates. The time evolutions of the contact angle and the droplet mass are examined. The experimental data are in good quantitative agreement with the model presented by Popov Phys. Rev. E 71 036313 (2005), demonstrating that the evaporation process is quasistatic, diffusion-driven, and that thermal effects play no role. Furthermore, we show that the experimental data for the evolution of both the contact angle and the droplet mass can be collapsed onto one respective universal curve for all droplet sizes and initial contact angles
Item Type:Article
Copyright:© 2011 American Physical Society
Faculty:
Science and Technology (TNW)
Research Group:
Link to this item:http://purl.utwente.nl/publications/78903
Official URL:http://dx.doi.org/10.1103/PhysRevE.83.026306
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 282162