Elongation of confined ferrofluid droplets under applied fields.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 60(4 Pt B): 4272-9, 1999 Oct.
Article
en En
| MEDLINE
| ID: mdl-11970280
Ferrofluids are strongly paramagnetic liquids. We study the behavior of ferrofluid droplets confined between two parallel plates with a weak applied field parallel to the plates. The droplets elongate under the applied field to reduce their demagnetizing energy and reach an equilibrium shape where the magnetic forces balance against the surface tension. This elongation varies logarithmically with aspect ratio of droplet thickness to its original radius, in contrast to the behavior of unconfined droplets. Experimental studies of a ferrofluid-water-surfactant emulsion confirm this prediction.
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01-internacional
Base de datos:
MEDLINE
Idioma:
En
Revista:
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
Asunto de la revista:
MEDICINA
Año:
1999
Tipo del documento:
Article
País de afiliación:
Estados Unidos
Pais de publicación:
Estados Unidos