Eﬀects of a microscale ridge on dynamic wetting during drop impact (2020)
High-speed imaging of water drop impacts on a polymer surface have been used alongside two-dimensional Lattice Boltzmann simulations to investigate the conditions under which a spreading lamella submerges a small surface ridge. Three basic outcomes have been observed when the lamella comes into contact with the ridge: pinning, wetting and splashing. The eﬀects of Weber number and the dimensionless distance between the impact point and the ridge are investigated, and a phase portrait of the diﬀerent wetting outcomes is presented. For each of the potential outcomes, a side-by-side comparison of experimental and numerical results can be made. An energy balance approach is used to study the transitions between the diﬀerent outcomes.
CitationRashidian H, Broom M, Willmott GR, Sellier M (2020). Eﬀects of a microscale ridge on dynamic wetting during drop impact. Journal of the Royal Society of New Zealand. 50(4). 523-537.
This citation is automatically generated and may be unreliable. Use as a guide only.