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首页> 外文期刊>The European physical journal: Special topics >Capillary filling for multicomponent fluid using the pseudo-potential Lattice Boltzmann method
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Capillary filling for multicomponent fluid using the pseudo-potential Lattice Boltzmann method

机译:使用伪势格子Boltzmann方法填充多组分流体的毛细管

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摘要

We present a systematic study of capillary filling for a binary fluid by using mesoscopic a lattice Boltzmann model describing a diffusive interface moving at a given contact angle with respect to the walls. We compare the numerical results at changing the ratio the typical size of the capillary, H, and the wettability of walls. Numerical results yield quantitative agreement with the theoretical Washburn law, provided that the channel height is sufficiently larger than the interface width and variations of the dynamic contact angle with the capillary number are taken into account.
机译:我们通过使用介观格子Boltzmann模型描述二元流体的毛细管填充的系统研究,该模型描述了相对于壁以给定的接触角运动的扩散界面。我们比较了改变毛细管的典型尺寸H和壁的可湿性时的数值结果。如果通道高度足够大于界面宽度,并且考虑了动态接触角随毛细管数的变化,则数值结果与理论Washburn定律定量吻合。

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