Ternary free-energy lattice Boltzmann model with tunable surface tensions and contact angles.
Ternary free-energy lattice Boltzmann model with tunable surface tensions and contact angles.
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DOI：
10.1103/physreve.93.033305
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发表时间：
2015-11
期刊：
影响因子：
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通讯作者：
C. Semprebon;T. Krüger;H. Kusumaatmaja
中科院分区：
文献类型：
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作者：
C. Semprebon;T. Krüger;H. Kusumaatmaja
我们提出了三元自由能晶格玻尔兹曼模型。我们模型的显着特点是我们能够分析推导并独立改变所有流体-流体表面张力和固体表面接触角。我们进行了许多基准测试：(i) 双乳液和液体透镜来验证表面张力，(ii) 三元流体与方井接触，以将接触角与分析预测进行比较，以及 (iii) 三元相分离，以验证是否准确捕获了多组分流体动力学。此外，我们还描述了如何扩展此处提出的模型以包含任意数量的流体成分。
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.