Drag reduction in polymer solutions based on splash visualization

被引：0
|
作者：
E. Sabadini
M. Alkschbirs
机构：
[1] Departamento de Físico-Química,
[2] Universidade Estadual de Campinas,undefined
[3] Caixa Postal 6154,undefined
[4] CEP 13083-970,undefined
[5] Campinas,undefined
[6] São Paulo,undefined
[7] Brazil,undefined
来源：
Experiments in Fluids | 2002年 / 33卷
关键词：
Oxide; Polymer; Ethylene; Aqueous Solution; Polymer Solution;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The drag-reduction phenomenon is produced when very small amounts of some substances such as high-molar-mass polymers are dissolved in a solvent. In this paper some aspects of drag reduction were studied through the observation of the liquid deformation due to the impact of a droplet against a shallow surface using aqueous solutions of poly(ethylene oxide). The presence of polymer leads to a change in the splash morphology, mainly for the Rayleigh jet. The amplitude of the Rayleigh jet is highly sensitive to the concentration and molar mass of the polymer and can be used to determine the percentage of the drag reduction.
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页码：242 / 248
页数：6
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