Turbulent drag reduction by surfactants

被引：45
|
作者：
Drappier, J
Divoux, T
Amarouchene, Y
Bertrand, F
Rodts, S
Cadot, O
Meunier, J
Bonn, D
机构：
[1] Ecole Normale Super, Phys Stat Lab, F-75231 Paris 05, France
[2] Univ Bordeaux 1, Ctr Phys Mol Opt & Hertzienne, F-33405 Talence, France
[3] ENPC, LMSGC, F-77455 Marne La Vallee 2, France
[4] Univ Havre, Lab Mecan, F-76600 Le Havre, France
[5] van der Waals Zeeman Inst, NL-1018 XE Amsterdam, Netherlands
来源：
EUROPHYSICS LETTERS | 2006年 / 74卷 / 02期
关键词：
D O I：
10.1209/epl/i2005-10519-x
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Drag reduction of turbulent flows by surfactant additives is studied. The surfactant forms a shear-induced gel phase in both rheological and turbulent flows. In both flows, the fracture of the gel causes an apparent wall slip. The slipping in turbulent flows decreases the wall friction and therefore immediately leads to drag reduction, providing a detailed mechanism for drag reduction by surfactants.
引用
收藏
页码：362 / 368
页数：7
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