Imbibition through an array of triangular聽posts.
J Phys Condens Matter 21:46 (2009) 464125
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.Modelling capillary filling dynamics using lattice Boltzmann simulations
(2009)
Capillary filling in microchannels patterned by posts.
Phys Rev E Stat Nonlin Soft Matter Phys 80:5 Pt 2 (2009) 056309
Abstract:
We investigate the capillary filling of three-dimensional microchannels with surfaces patterned by posts of square cross section. We show that pinning on the edges of the posts suppresses and can halt capillary filling. We stress the importance of the channel walls in controlling whether filling can occur. In particular for channels higher than the distance between adjacent posts, filling occurs for contact angles less than a threshold angle of approximately 55 degrees , independent of the height of the channel.Imbibition through an array of triangular posts
(2009)
Capillary filling in microchannels patterned by posts
(2009)