The Effect of Rotation on Convective Instability Induced by Surface Tension and Buoyancy

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概要

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• The effect of uniform rotation on the onset of thermal instability in a horizontal layer of fluid is studied by means of linear stability analysis, assuming that one of the bounding surfaces is free and the other rigid. As the agencies causing instability, both surface tension and buoyancy are taken into consideration. A Fourier series method is used to obtain the eigenvalue equation which is then computed numerically. It was found that the Coriolis force has an inhibiting effect on the onset of convection even if the surface tension effect is taken into consideration, and as the speed of rotation increases the coupling between the two agencies causing instability becomes weaker; further, that in a rapidly rotating layer, a discontinuous change in cell size occurs at a certain value of the Rayleigh number, as a result of a sudden changeover from convection dominated by one of the two agencies to that dominated by the other.

• 社団法人日本物理学会の論文
• 1970-05-05

著者

• Takashima Masaki

  Department Of Human Pathology Tokyo Medical And Dental University

• KAMIKAWA Tomikazu

  High Alitude Observatory National Center for Atmoxpheric Research

• MATSUSHITA Sadami

  High Alitude Observatory National Center for Atmoxpheric Research

• Kamikawa Tomikazu

  High Alitude Observatory National Center For Atmoxpheric Research:(present Address) Department Of Ph

• Matsushita Sadami

  High Alitude Observatory National Center For Atmoxpheric Research:(present Address) The National Center For Atmospheric Research Is Sponsored By The National Science Foundation

• Namikawa Tomikazu

  High Alitude Observatory National Center for Atmoxpheric Research

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