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相关论文: Plateau Instability of Liquid Crystalline Cylinder…

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The linear stability theory of Taylor-Couette flows (unbounded in_z_) is described including magnetic fields, Hall effect or a density stratification in order to prepare laboratory experiments to probe the stability of differential rotation…

天体物理学 · 物理学 2007-05-23 Guenther Ruediger

The influence of the magnetic field shear is studied on the $E\times B$ (and/or Gravitational) and the Current Convective Instabilities (CCI) occuring in the High latitude F-layer ionosphere. It is shown that magnetic shear reduces the…

This paper provides a brief overview of the formation of stellar fossil magnetic fields and what potential instabilities may occur given certain configurations of the magnetic field. In particular, a purely magnetic instability can occur…

太阳与恒星天体物理 · 物理学 2016-10-28 Kyle Augustson , Stephane Mathis , Antoine Strugarek

An isotropic medium, having magnetic sublevels, when subjected to a magnetic field or an electromagnetic field can induce anisotropy in the medium; and as a result the plane of polarization of the probe field can rotate. Therefore the…

量子物理 · 物理学 2007-05-23 Anil K. Patnaik , G. S. Agarwal

We study the Plateau-Rayleigh instability of a viscoelastic soft solid layer coated on a rigid cylinder i.e., a soft fibre with a rigid core. The onset of instability is examined using a linear stability analysis. We find that increasing…

软凝聚态物质 · 物理学 2024-02-12 Bharti , Andreas Carlson , Tak Shing Chan

Stability of toroidal magnetic field in a stellar radiation zone is considered for the cases of uniform and differential rotation. In the rigidly rotating radiative core shortly below the tachocline, the critical magnetic field for…

天体物理学 · 物理学 2009-11-13 L. L. Kitchatinov , G. Rüdiger

This paper studies the instability of two-dimensional magnetohydrodynamic (MHD) systems on a sphere using analytical methods. The underlying flow consists of a zonal differential rotation and a toroidal magnetic field is present. Semicircle…

流体动力学 · 物理学 2022-12-20 Chen Wang , Andrew D. Gilbert , Joanne Mason

Aims. We investigate the impact of ambipolar diffusion on the development of the Rayleigh-Taylor instability (RTI) with an oblique magnetic field in the incompressible limit. Methods. We developed a general bi-fluid framework comprising…

星系天体物理 · 物理学 2025-06-25 E. Callies , V. Guillet , A. Marcowith , Z. Meliani , P. Lesaffre

The MHD instabilities can generate complex field topologies even if the initial field configuration is a very simple one. We consider the stability properties of magnetic configurations containing a toroidal and an axial field. In this…

天体物理学 · 物理学 2009-11-13 Alfio Bonanno , Vadim Urpin

We study a three-dimensional, incompressible, viscous, micropolar fluid with anisotropic microstructure on a periodic domain. Subject to a uniform microtorque, this system admits a unique nontrivial equilibrium. We prove that this…

偏微分方程分析 · 数学 2020-10-01 Antoine Remond-Tiedrez , Ian Tice

In this work, we argue that an anisotropic interaction potential may stabilize anisotropic liquid phases of electrons even in a strong magnetic field regime where normally one expects to see only isotropic quantum Hall or isotropic Fermi…

强关联电子 · 物理学 2017-04-05 Orion Ciftja

The Global Magnetorotational Instability (MRI) is investigated for a configuration in which the rotation frequency changes only in a narrow transition region. If the vertical wavelength of the unstable mode is of the same order or smaller…

天体物理仪器与方法 · 物理学 2011-02-11 J. Pino , S. M. Mahajan

The stratification-driven Hall instability in a weakly ionized polytropic plasma is investigated in the local approximation within an equilibrium Keplerian disk of a small aspect ratio. The leading order of the asymptotic expansions in the…

天体物理学 · 物理学 2011-02-11 Yuri M. Shtemler , Michael Mond , Edward Liverts

In the present work the instability of a flat horizontal thin layer of a magnetic fluid (the depth of no more than 50 \mum) under the action of a uniform magnetic field is studied experimentally. It was revealed that the development of…

流体动力学 · 物理学 2017-04-28 Arthur Zakinyan , Levon Mkrtchyan , Yuri Dikansky

We show, by means of a perturbative weakly nonlinear analysis, that the axisymmetric magneto-rotational instability (MRI) in a magnetic Taylor-Couette (mTC) flow in a thin-gap gives rise, for very small magnetic Prandtl numbers (P_m), to a…

天体物理学 · 物理学 2015-05-13 O. Regev

We investigate the chiral magnetic instability in the crust of a neutron star as a potential mechanism for amplifying magnetic fields. This instability may become active when small deviations from chemical equilibrium are sustained over…

高能天体物理现象 · 物理学 2024-08-13 Clara Dehman , José A. Pons

The Landau problem for inhomogeneous magnetic fields is examined in a very general context and several interesting analogies with the Nielsen-Olesen vortices are established. Firstly we show that the Landau problem with non-homogeneous…

高能物理 - 理论 · 物理学 2019-01-30 Paola Arias , J. Gamboa , F. Méndez , David Valenzuela

We take charged anisotropic fluid cylinder when there is no external pressure acting on the fluid. This is a cylindrical version of the Krori and Barua's method to explore the field equations with anisotropic fluid. We discuss models with…

综合物理 · 物理学 2015-06-03 M. Sharif , H. Ismat Fatima

Primary instability of the lid-driven flow in a cube is studied by a comprehensive linear stability approach. Two cases, in which the lid moves parallel to the cube sidewall or parallel to the diagonal plane, are considered. The SIMPLE…

流体动力学 · 物理学 2019-02-06 A. Y. Gelfgat

An exact analytic solution has been obtained for a uniformly expanding, neutral, infinitely conducting plasma cylinder in an external uniform and constant magnetic field. The electrodynamical aspects related to the emission and…

等离子体物理 · 物理学 2015-05-19 Hrachya B. Nersisyan