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.

引用

页码：305 / 314

页数：10

共 14 条

[1]

[Anonymous], FRACTAL APPROACH HET

[2]

BEN M, UNPUB

[3] VISCOUS TREES AND VORONOI-STRUCTURE FORMATION IN EXPANDING SYSTEMS [J].

BOHR, J ;

BRUNAK, S ;

NORRETRANDERS, T .

EUROPHYSICS LETTERS, 1994, 25 (04) :245-252

[4]

CHUOKE RL, 1959, J PETROL TECH, V11, P64

[5] Cohesive failure of thin layers of soft model adhesives under tension [J].

Derks, D ;

Lindner, A ;

Creton, C ;

Bonn, D .

JOURNAL OF APPLIED PHYSICS, 2003, 93 (03) :1557-1566

[6] Theory of tackiness [J].

Gay, C ;

Leibler, L .

PHYSICAL REVIEW LETTERS, 1999, 82 (05) :936-939

[7]

JACOB EB, 1985, PHYS REV LETT, V55, P1315

[8] EXPERIMENTAL PERTURBATIONS TO SAFFMAN-TAYLOR FLOW [J].

MCCLOUD, KV ;

MAHER, JV .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1995, 260 (03) :139-185

[9] Discrete scale invariance in viscous fingering patterns [J].

Roy, A ;

Roy, S ;

Bhattacharyya, AJ ;

Banerjee, S ;

Tarafdar, S .

EUROPEAN PHYSICAL JOURNAL B, 1999, 12 (01) :1-3

[10] Patterns in the variable Hele-Shaw cell for different viscosity ratios: Similarity to river network geometry [J].

Roy, S ;

Tarafdar, S .

PHYSICAL REVIEW E, 1996, 54 (06) :6495-6499

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