Abstract : Liquid rings can be generated in the Leidenfrost state using liquid oxygen of low boiling point (-183 degrees C) and high magnetic susceptibility, allowing one to 'sculpt' the liquid into a ring shape using an annular magnet. When the magnetic field is turned off, the ring shrinks back into a puddle with a constant acceleration. A potential flow approach accurately describes the dynamics of closure with an equation reminiscent of the Rayleigh-Plesset equation for the collapse of transient cavities.
Type de document :
Article dans une revue
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2013, 717, pp.R3. 〈10.1017/jfm.2013.15〉
https://hal-polytechnique.archives-ouvertes.fr/hal-00996421
Contributeur : Denis Roura
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Soumis le : mardi 27 mai 2014 - 15:27:09
Dernière modification le : lundi 10 décembre 2018 - 01:25:45
Document(s) archivé(s) le : mercredi 27 août 2014 - 10:42:53
