首页> 外文期刊>The European physical journal, E. Soft matter >Capillary filling with pseudo-potential binary Lattice-Boltzmann model
【24h】

Capillary filling with pseudo-potential binary Lattice-Boltzmann model

机译:用伪势二进制Lattice-Boltzmann模型填充毛细管

获取原文
获取原文并翻译 | 示例
           

摘要

We present a systematic study of capillary filling for a binary fluid by using a mesoscopic lattice Boltzmann model for immiscible fluids describing a diffusive interface moving at a given contact angle with respect to the walls. The phenomenological way to impose a given contact angle is analysed. Particular attention is given to the case of complete wetting, that is contact angle equal to zero. Numerical results yield quantitative agreement with the theoretical Washburn's law, provided that the correct ratio of the dynamic viscosities between the two fluids is used. Finally, the presence of precursor films is experienced and it is shown that these films advance in time with a square-root law but with a different prefactor with respect to the bulk interface.
机译:我们通过使用介观格子Boltzmann模型对不混溶流体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接触角移动的扩散界面。分析了施加给定接触角的现象学方法。特别注意完全润湿的情况,即接触角等于零。如果使用正确的两种流体之间的动态粘度比,则数值结果与理论Washburn定律具有定量的一致性。最终,经历了前体膜的存在,并且显示出这些膜以平方根定律随时间前进,但是相对于本体界面具有不同的因素。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号