Falling slugs

被引：67

作者：

Bico, J ^{[1
]}

Quéré, D ^{[1
]}

机构：

[1] Coll France, URA 792 CNRS, Phys Mat Condensee Lab, F-75231 Paris 05, France

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2001年 / 243卷 / 01期

关键词：

Poiseuille law; dynamic contact angle;

D O I：

10.1006/jcis.2001.7891

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The fall of viscous slugs in vertical capillary tubes is described. Deviations toward Poiseuille law are analyzed by taking into account the dissipation in menisci, together with the existence of a film behind the slug. Slugs are found to fall slower in dry tubes than in prewetted ones, which is quantitatively discussed in term of viscous friction. A criterion for the minimal length of the slug obeying the Poiseuille solution is finally derived. (C) 2001 Academic Press.

引用

页码：262 / 264

页数：3

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