title: Imbibition through an array of triangular posts.
abstract: We present and interpret simulation results showing how a fluid moves on a hydrophilic substrate patterned by a square array of triangular posts. We demonstrate that the shape of the posts leads to anisotropic spreading, and discuss how this is influenced by the different ways in which the posts can pin the advancing front.
authors.affiliation: Rudolf Peierls Centre for Theoretical Physics, 1 Keble Road, Oxford OX1 3NP, UK.
authors.forename: M L
authors.initials: ML
authors.lastname: Blow
authors.forename: H
authors.initials: H
authors.lastname: Kusumaatmaja
authors.forename: J M
authors.initials: JM
authors.lastname: Yeomans