Droplet dynamics on patterned substrates

Conference item

We present a lattice Boltzmann algorithm which can be used to explore the spreading of droplets on chemically and topologically patterned substrates. As an example we use the method to show that the final configuration of a drop on a substrate comprising hydrophobic and hydrophilic stripes can depend sensitively on the dynamical pathway by which the state is reached. We also consider a substrate covered with micron-scale posts and investigate how this can lead to superhydrophobic behaviour. Finally we model how a Namibian desert beetle collects water from the wind.

Authors: Dupuis, A; Yeomans, J

• Publication status: Published
• Journal: PRAMANA-JOURNAL OF PHYSICS
• Volume: 64
• Issue: 6
• Pages: 1019-1027
• Publication date: 2005-06-01
• Event title: 22nd IUPAP International Conference on Statistical Physics (STATPHYS 22)
• DOI: 10.1007/BF02704164
• EISSN: 0973-7111
• ISSN: 0304-4289
• Keywords: lattice Boltzmann model; droplet spreading; patterned surfaces