マス・フォア・インダストリ研究所

セミナー



リスト 全て(掲示受付分)(1626) 今日・明日のセミナー(0)

Three dimensional Tayler instability of Hall MHD


開催時期 2019-01-10 16:00~2019-01-10 17:30

場所 九州大学 伊都キャンパス ウエスト1号館 中講義室 W1-C-512

受講対象  

講師 Rong ZOU (Zhejiang Normal University, 中国)

【講演概要】
The Tayler instability of Hall MHD is studied by calculating the energy of disturbances. A static equilibrium in an azimuthal magnetic field is considered. Both the axisymmetric and nonaxisymmetric disturbances are discussed. By the energy principle, the positivity of potential energy is sufficient for the stability of flows. We obtain the sufficient condition for the stability of Hall MHD, which is weakened to the condition for MHD stability when the Hall effect is neglected as shown by R. J. Tayler.