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Pressure difference induced by curvature at the interface of a ferrofluid

F. Elias , C. Flament , J.-C. Bacri

Laboratoire des Milieux Désordonnés et Hétérogènes Université Paris 6, Case 78, 4 place Jussieu, 75252 Paris cedex 05, France

We present an experimental study of two-dimensional (2D) bubble and foam patterns, whose boundaries contain a magnetic fluid (MF). Under the influence of a perpendicular external magnetic field, pressure differences are observed between disconnected domains. We show that the sign of the pressure difference depends, in a surprising manner, on the sign of the curvature of the boundaries. Figs 7, Refs 20.

Magnitnaya Gidrodinamika 35, No. 4, 334-343, 1999 [PDF, 1.23 Mb]
Magnetohydrodynamics 35, No. 4, 269-277, 1999 [PDF, 0.84 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X