Removal of Convective Instabilities in Liquid Metals by Centrifugation

  • Alain Chevy
  • Pascal Williams
  • Michel Rodot
  • Gérard Labrosse


Convective instabilities generated in liquid cells, under earth’s gravity, for a destabilizing thermal gradient, can be removed by centrifugation. Experiments on molten tin show a reversible transition from an unstable to a stable regime, at a well defined value of the rotation rate. These observations can be understood by considering that the axial buoyancy force depends on both the density gradient and the acceleration generated along the axis of a fluid cell installed on a centrifuge.


Rayleigh Number Convective Instability Convective Regime Centrifugal Acceleration Axial Gradient 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • Alain Chevy
    • 1
  • Pascal Williams
    • 1
  • Michel Rodot
    • 2
  • Gérard Labrosse
    • 3
  1. 1.Physique des Milieux CondensésUniversité Pierre et Marie Curie CNRS URA 782,Paris Cedex 05France
  2. 2.Equipe Technologie de la Croissance CristallineCNRSMeudonFrance
  3. 3.L.I.M.S.I. Université Paris-SudOrsay CedexFrance

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