Different regimes in vertical capillary filling
Different regimes in vertical capillary filling
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DOI：
10.1103/physreve.87.063005
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发表时间：
2013-06-12
影响因子：
2.4
通讯作者：
Mitra, Sushanta K.
中科院分区：
文献类型：
--
作者：
Das, Siddhartha;Mitra, Sushanta K.
在本文中，我们发现在垂直毛细血管填充或毛细血管上升问题中遇到的不同情况完全由两个无维参数决定：奥内格数（Oh）和键数（Bo）。我们最近的一篇论文[Das et al., Phys.]分析了初始通用惯性状态。Rev. E 86, 067301(2012)]，之后是由Oh/Bo比率决定的三种可能的状态中的任何一种。对于Oh/Bo b> > 1，粘性效应支配引力效应，并且遇到经典的Washburn状态。对于另一个极限，即Oh/Bo
In this paper, we identify that the different regimes encountered in a vertical capillary filling or a capillary-rise problem are determined entirely by two dimensionless parameters: Ohnesorge number (Oh) and Bond number (Bo). The initial universal inertial regime, which has been analyzed in our recent paper [Das et al., Phys. Rev. E 86, 067301 (2012)], is followed by any one of three possible regimes, dictated by the ratio Oh/Bo. For Oh/Bo >> 1, the viscous effects dominate the gravitational effects, and one encounters the classical Washburn regime. For the other limit, i.e., Oh/Bo