Phase field simulation of liquid filling on grooved surfaces for complete, partial, and pseudo-partial wetting cases

Oktasendra, Fandi; Jusufi, Arben; Konicek, Andrew R.; Yeganeh, Mohsen S.; Panter, Jack R.; Kusumaatmaja, Halim

Abstract

We develop and harness a phase field simulation method to study liquid filling on grooved surfaces. We consider both short-range and long-range liquid–solid interactions, with the latter including purely attractive and repulsive interactions as well as those with short-range attraction and long-range repulsion. This allows us to capture complete, partial, and pseudo-partial wetting states, demonstrating complex disjoining pressure profiles over the full range of possible contact angles as previously proposed in the literature. Applying the simulation method to study liquid filling on grooved surfaces, we compare the filling transition for the three different classes of wetting states as we vary the pressure difference between the liquid and gas phases. The filling and emptying transitions are reversible for the complete wetting case, while significant hysteresis is observed for the partial and pseudo-partial cases. In agreement with previous studies, we also show that the critical pressure for the filling transition follows the Kelvin equation for the complete and partial wetting scenarios. Finally, we find the filling transition can display a number of distinct morphological pathways for the pseudo-partial wetting cases, as we demonstrate here for varying groove dimensions.

Citation

Oktasendra, F., Jusufi, A., Konicek, A. R., Yeganeh, M. S., Panter, J. R., & Kusumaatmaja, H. (2023). Phase field simulation of liquid filling on grooved surfaces for complete, partial, and pseudo-partial wetting cases. The Journal of Chemical Physics, 158(20), https://doi.org/10.1063/5.0144886

• Journal Article Type: Article
• Acceptance Date: Apr 28, 2023
• Online Publication Date: May 22, 2023
• Publication Date: May 22, 2023
• Deposit Date: Aug 16, 2023
• Publicly Available Date: Aug 16, 2023
• Journal: The Journal of Chemical Physics
• Print ISSN: 0021-9606
• Electronic ISSN: 1089-7690
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 158
• Issue: 20
• DOI: https://doi.org/10.1063/5.0144886
• Keywords: Physical and Theoretical Chemistry; General Physics and Astronomy
• Public URL: https://durham-repository.worktribe.com/output/1719573
• Publisher URL: https://pubs.aip.org/aip/jcp