水平流体層内の自然対流発生に及ぼす鉛直磁場の影響

概要

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The onset of natural convection in an electrically conducting fluid confined within a horizontal container is examined theoretically for the case that the fluid is subjected to a vertical temperature gradient and a vertical magnetic field. A numerical analysis is carried out on the fluid layer in circular cylindrical containers. The Rayleigh number, Hartmann number and aspect ratio of the container are taken as variables. It is found that both the critical Rayleigh number and the number of rolls which generate at the critical point increase as the intensity of the magnetic field increases, and that the effects of the aspect ratio of the container on the critical Rayleigh number and the flow patterns vanishes when the intensity of the magnetic field is sufficiently large.
一般社団法人日本機械学会の論文
1986-02-25