The effect of a zwitterionic and cationic surfactant in turbulent flows

被引：0
|
作者：
J. Myska
Z. Chara
机构：
[1] Institute of Hydrodynamics Pod Patankou 5,
[2] 16612 Praha 6,undefined
[3] Czech Republic,undefined
来源：
Experiments in Fluids | 2001年 / 30卷
关键词：
Polymer; Surfactant; Friction Factor; Cationic Surfactant; Drag Reduction;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A zwitterionic and a cationic surfactant were compared concerning their effectiveness in drag reduction. Both reach even lower friction factors than can be determined by the known maximum drag reduction asymptote in polymers. It is shown that both the maximum effectiveness and the range of surfactant activity depend not only on the temperature and concentration of the solution, but also on the length of the direct entering section and on the quality of water. The influence of the particular locality of the flow rate regulation is also notified.
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页码：229 / 236
页数：7
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