Finger velocities in the lifting Hele-Shaw cell

被引：33
作者：
Kabiraj, SK [1 ]
Tarafdar, S [1 ]
机构：
[1] Jadavpur Univ, Dept Phys, Condensed Matter Phys Res Ctr, Kolkata 700032, India
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2003年 / 328卷 / 3-4期
关键词：
viscous fingers; Hele-Shaw cell; velocity correlation;
D O I：
10.1016/S0378-4371(03)00523-5
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Velocities of viscous fingers growing in a lifting Hele-Shaw cell are studied. The plates are separated by a pneumatic cylinder arrangement exerting a constant force. It is observed that with air invading a non-Newtonian oil-paint, finger velocities show an anomalous behaviour, with a rapid growth towards the end of the process. The correlation coefficient between neighbouring fingers shows the dominant modes selected as the pattern develops. (C) 2003 Elsevier B.V. All rights reserved.
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页码：305 / 314
页数：10
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