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This paper presents simulations of the 2d model developed by Poth\'erat at al (\emph{J. Fluid Mech}, 2000) for MHD flows between two planes with a strong transverse homogeneous and steady magnetic field, accounting for moderate inertial…

流体动力学 · 物理学 2020-06-23 Alban Pothérat , Joël Sommeria , René Moreau

A flow of electrically conducting fluid in the presence of a steady magnetic field has a tendency to become quasi two-dimensional, i.e. uniform in the direction of the magnetic field, except in thin so-called Hartmann boundary layers. The…

流体动力学 · 物理学 2009-09-29 Thierry Alboussiere

Realistic boundaries of finite heat conductivity Realistic boundaries of finite heat conductivity for thermoconvection in a Rayleigh-B\'enard setup with magnetized ferrofluids are investigated. A linear stability analysis of the conductive…

patt-sol · 物理学 2009-10-31 A. Recktenwald , M. Luecke

We have investigated the transition temperature $T_{\rm c}(H)$ of superconductiv ity in quasi-two-dimensional (Q2D) tight-binding electrons in a strong magnetic field. When the magnetic field is parallel to 2D conducting plane, $T_{\rm…

超导电性 · 物理学 2009-10-31 Mitake Miyazaki , Keita Kishigi , Yasumasa Hasegawa

Motivated by the significant interaction of convection, rotation and magnetic field in many astrophysical objects, we investigate the interplay between large-scale flows driven by rotating convection and an imposed magnetic field. We…

太阳与恒星天体物理 · 物理学 2016-11-23 Laura K. Currie

We consider a low-dimensional model of convection in a horizontally magnetized layer of a viscous fluid heated from below. We analyze in detail the stability of hydromagnetic convection for a wide range of two control parameters. Namely,…

混沌动力学 · 物理学 2014-03-26 Wieslaw M. Macek , Marek Strumik

We study the magneto-rotational instability of an incompressible flow which rotates with angular velocity Omega(r)=a+b/r^2 where r is the radius and $a$ and b are constants. We find that an applied magnetic field destabilises the flow, in…

天体物理学 · 物理学 2008-11-26 Ashley P. Willis , Carlo F. Barenghi

Thermal fluctuation conductivity for a layered superconductor in perpendicular magnetic field is treated in the frame of the self-consistent Hartree approximation for an arbitrarily strong in-plane electric field. The simultaneous…

超导电性 · 物理学 2009-11-10 Ionut Puica , Wolfgang Lang

We consider a clean layered magnetic superconductor in which a continuous magnetic transition takes place inside superconducting state and the exchange interaction between superconducting and magnetic subsystems is weak so that…

超导电性 · 物理学 2020-08-10 A. E. Koshelev

The effect of a homogeneous magnetic field on surface-tension-driven B\'{e}nard convection is studied by means of direct numerical simulations. The flow is computed in a rectangular domain with periodic horizontal boundary conditions and…

流体动力学 · 物理学 2009-11-23 Thomas Boeck

We discuss the effects of nonhomogeneous magnetic fields in liquid metal flows in two different configurations. In the first configuration, we briefly report the impact of fringing magnetic fields in a turbulent Rayleigh-B{\'e}nard…

流体动力学 · 物理学 2023-09-21 Shashwat Bhattacharya , Seyed Loghman Sanjari , Dmitry Krasnov , Thomas Boeck

We investigate the onset of convective instability and subsequent transitions near it in Rayleigh-B\'enard convection (RBC) of electrically conducting low Prandtl-number (Pr) fluids in the simultaneous presence of rotation about the…

流体动力学 · 物理学 2018-12-18 Manojit Ghosh , Paromita Ghosh , Yada Nandukumar , Pinaki Pal

Using two different configurations of temperature and magnetic field gradients, we observed that, in a quasi one-dimensional magnetic fluid, magnetic force either reduces the temperature difference across the sample when the two gradients…

软凝聚态物质 · 物理学 2018-01-16 Jun Huang , Weili Luo , Tianshu Liu

The effect of fluctuations on the transport and thermodynamic properties of two-dimensional superconductors in a magnetic field is studied at low temperature. The fluctuation conductivity is calculated in the framework of the perturbation…

超导电性 · 物理学 2009-10-31 Victor Galitski , A. I. Larkin

The non-Ohmic effect of a high electric field on the out-of-plane magneto-conductivity of a layered superconductor near the superconducting transition is studied in the frame of the Langevin approach to the time-dependent Ginzburg-Landau…

超导电性 · 物理学 2009-11-11 I. Puica , W. Lang

In this paper, we are concerned with the initial boundary values problem associated to the compressible viscous non-resistive and heat-conducting magnetohydrodynamic flow, where the magnetic field is vertical. More precisely, by exploiting…

偏微分方程分析 · 数学 2024-08-15 Xiaoping Zhai , Yongsheng Li , Yajuan Zhao

In weakly magnetized, dilute plasmas in which thermal conduction along magnetic field lines is important, the usual convective stability criterion is modified. Instead of depending on entropy gradients, instability occurs for small…

天体物理学 · 物理学 2009-11-13 Ian J. Parrish , James M. Stone

Convection of an internally heated fluid, confined between top and bottom plates of equal temperature, is studied by direct numerical simulation in two and three dimensions. The unstably stratified upper region drives convection that…

流体动力学 · 物理学 2016-06-30 David Goluskin , Erwin P. van der Poel

A theoretical study of dynamics of small thermal and electromagnetic perturbations in type-II superconductors in the flux creep regime with a nonlinear current-voltage characteristics is performed. For this purpose, the space-time evolution…

超导电性 · 物理学 2015-03-13 N. A. Taylanov

We study the energy stability of pressure-driven laminar magnetohydrodynamic flow in a rectangular duct with transverse homogeneous magnetic field and electrically insulating walls. For sufficiently strong fields, the laminar velocity…

流体动力学 · 物理学 2024-05-29 Thomas Boeck , Mattias Brynjell-Rahkola , Yohann Duguet