A new instability for finite Prandtl number rotating convection with free-slip boundary conditions

نویسندگان

  • Y. Ponty
  • T. Passot
چکیده

Rolls in finite Prandtl number rotating convection with free-slip top and bottom boundary conditions are shown to be unstable with respect to small angle perturbations for any value of the rotation rate. This instability is driven by the horizontal mean flow whose estimation requires a special singular perturbation analysis. PACS numbers: 47.27.Te, 47.20.Bp, 47.32.-y, 47.20.-Lz

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تاریخ انتشار 2008