Simulation of interfacial waves of two-layer flows through phase field lattice Boltzmann method
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Simulation of the interfacial wave growth in a plane channel is performed by a phase field lattice Boltzmann method (LBM) in this work. The numerical results are validated against linear theory analysis. The influence of viscosity ratio and liquid layer height on the wave initiation is studied Results show that the wave grows slower with increasing viscosity ratio. On the other hand, the wave growth rate has more complex relationships with the liquid layer height. It is also found that there is a critical liquid layer height that prompts the strongest wave growth. Besides the linear characteristics during the early stage, nonlinear interfacial changes such as forming of ligament and droplets are also captured in this work.
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2019 ◽
Vol 131
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pp. 196-205
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2003 ◽
Vol 17
(01n02)
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pp. 183-187
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2018 ◽
Vol 223
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pp. 18-27
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2018 ◽
Vol 107
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pp. 1-15
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2020 ◽
Vol 861
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pp. 012067
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2019 ◽
Vol 30
(06)
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pp. 1950044
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