Impregnation of a porous ribbon

被引：7

作者：

Raphaël, É ^{[1
]}

de Gennes, PG ^{[1
]}

机构：

[1] Coll France, F-75231 Paris 05, France

来源：

COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE II FASCICULE B-MECANIQUE PHYSIQUE ASTRONOMIE | 1999年 / 327卷 / 07期

关键词：

porous media; impregnation; liquid films; wetting;

D O I：

10.1016/S1287-4620(99)80121-5

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We consider a ribbon circulating in a liquid bath (at a velocity V, over a distance L). The ribbon is porous and spontaneously sucks in some liquid. When going out vertically, it drags a Landau-Levich film. But the capillary process goes on: ultimately, the external film vanishes at a certain height H. We discuss the flow and the H value for a very crude mode. We then expect H similar to Ca-7/6, where Ca is the capillary number (assumed to be small). (C) Academie des sciences/Elsevier, Paris.

引用

页码：685 / 689

页数：5

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