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Radial fingering in a Hele Shaw cell

Published online by Cambridge University Press:  20 April 2006

Lincoln Paterson
Lincoln Paterson
Affiliation:
Department of Engineering Physics, Research School of Physical Sciences, The Australian National University, Canberra, 2600, Australia
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Abstract

The results of experiments involving instability, known as fingering, in a circular Hele Shaw cell with inward and outward flow are presented. The width of fingers in this situation is examined, and an approximate equation for the growth of fingers is proposed. The equation rα = cos (nθ) is shown to fit the shape of long fingers.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 113 , December 1981 , pp. 513 - 529
Copyright
© 1981 Cambridge University Press

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