Vorticity elongation in polymeric emulsions

被引：50
作者：
Hobbie, EK [1 ]
Migler, KB [1 ]
机构：
[1] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 26期
关键词：
D O I：
10.1103/PhysRevLett.82.5393
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Video microscopy is used to measure the shear-induced deformation of dilute emulsions composed of viscoelastic polymer melts. In the limit of strong shear, a transition in which the droplets elongate perpendicular to the flow field is observed. A force-balance argument relates this behavior to the change in first normal stress difference across the droplet interface.
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页码：5393 / 5396
页数：4
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