Effective Fluid Front of the Moving Meniscus in Capillary

详细信息    查看全文

• 作者：Chen Chen ; Kangjie Lu ; Lin Zhuang ; Xuefeng Li ; Jinfeng Dong ; Juntao Lu
• 刊名：Langmuir
• 出版年：2013
• 出版时间：March 12, 2013
• 年：2013
• 卷：29
• 期：10
• 页码：3269-3273
• 全文大小：312K
• 年卷期：v.29,no.10(March 12, 2013)
• ISSN：1520-5827

文摘

Traditionally, the meniscus bottom is taken as the fluid front when tracking the fluid motion in capillary, but in simulation studies, the thus-calculated motion curve deviates notably from the modified Lucas鈥揥ashburn equation. Here, we report that, by considering a volume equivalent of the meniscus part, the motion of the equivalent front agrees very well with the theoretical prediction; furthermore, such an effective fluid front can be directly represented by a specific position of the meniscus, which is independent of the capillary radius. These findings provide an accurate and practical method for describing the motion of the fluid front in capillary.