Ternary Free Energy Lattice Boltzmann Model with Tunable Surface Tensions and Contact Angles
arXiv:1511.02155 · doi:10.1103/PhysRevE.93.033305
Abstract
We present a new 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 here presented here can be extended to include an arbitrary number of fluid components.
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- Phase separation dynamics in deformable droplets
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- Modelling ternary fluids in contact with elastic membranes
- Lattice Boltzmann modeling of wall-bounded ternary fluid flows
- Grand-potential phase field simulations of droplet growth and sedimentation in a two-phase ternary fluid
- A versatile lattice Boltzmann model for immiscible ternary fluid flows