Ternary Free Energy Lattice Boltzmann Model with Tunable Surface Tensions and Contact Angles

Semprebon, C.; Krüger, T.; Kusumaatmaja, H.

Abstract

We present a ternary free-energy lattice Boltzmann model. The distinguishing feature of our model is that we are able to analytically derive and independently vary all fluid-fluid surface tensions and the solid surface contact angles. We carry out a number of benchmark tests: (i) double emulsions and liquid lenses to validate the surface tensions, (ii) ternary fluids in contact with a square well to compare the contact angles against analytical predictions, and (iii) ternary phase separation to verify that the multicomponent fluid dynamics is accurately captured. Additionally we also describe how the model presented here can be extended to include an arbitrary number of fluid components.

Citation

Semprebon, C., Krüger, T., & Kusumaatmaja, H. (2016). Ternary Free Energy Lattice Boltzmann Model with Tunable Surface Tensions and Contact Angles. Physical Review E, 93(3), Article 033305. https://doi.org/10.1103/physreve.93.033305

• Journal Article Type: Article
• Acceptance Date: Feb 19, 2016
• Online Publication Date: Mar 11, 2016
• Publication Date: Mar 11, 2016
• Deposit Date: Apr 4, 2016
• Publicly Available Date: Apr 5, 2016
• Journal: Physical review . E, Statistical, nonlinear, and soft matter physics
• Print ISSN: 2470-0045
• Electronic ISSN: 2470-0053
• Publisher: American Physical Society
• Peer Reviewed: Peer Reviewed
• Volume: 93
• Issue: 3
• Article Number: 033305
• DOI: https://doi.org/10.1103/physreve.93.033305
• Public URL: https://durham-repository.worktribe.com/output/1387835
• Related Public URLs: http://arxiv.org/abs/1511.02155