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相关论文: Rayleigh-Taylor instability in partially ionized p…

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The two-dimensional Richtmyer-Meshkov Instability(RMI) system and the coexisting system combined with Rayleigh-Taylor Instability(RTI) are simulated with a multiple-relaxation time discrete Boltzmann model. It is found that, for the RMI…

软凝聚态物质 · 物理学 2018-11-14 Feng Chen , Aiguo Xu , Guangcai Zhang

We study the magnetic Rayleigh-Taylor instability in relativistic collisionless plasma, as an astrophysical process for nonthermal particle acceleration. We consider dense plasma on top of a highly magnetized cavity with sheared magnetic…

高能天体物理现象 · 物理学 2023-10-11 Vladimir Zhdankin , Bart Ripperda , Alexander A. Philippov

We study the linear stability of weakly magnetized differentially rotating plasmas in both collisionless kinetic theory and Braginskii's theory of collisional, magnetized plasmas. We focus on the very weakly magnetized limit that is…

星系天体物理 · 物理学 2015-06-23 Eliot Quataert , Tobias Heinemann , Anatoly Spitkovsky

The magnetorotational instability (MRI) in cylindrical Taylor-Couette flow with external helical magnetic field is simulated for infinite and finite aspect ratios. We solve the MHD equations in their small Prandtl number limit and confirm…

天体物理学 · 物理学 2008-11-26 Jacek Szklarski , Günther Rüdiger

We investigate hydrodynamic instability of accelerating ionization fronts using two dimensional hydrodynamic simulations that include detailed energy deposition and release due to the absorption of UV radiation, recombination of hydrogen,…

天体物理学 · 物理学 2009-11-10 Akira Mizuta , Jave O. Kane , Marc W. Pound , Bruce A. Remington , Dmitri D. Ryutov , Hideaki Takabe

We study the Rayleigh-Taylor problem for two incompressible, immiscible, viscous magnetohydrodynamic (MHD) flows, with zero resistivity, surface tension (or without surface tenstion) and special initial magnetic field, evolving with a free…

综合数学 · 数学 2012-05-02 Fei Jiang , Song Jiang , Yanjin Wang

We investigate the Rayleigh-Taylor instability at the two interfaces in a phase-separated three-component Bose-Einstein condensate in the mean-field framework. The subsequent dynamics in the immiscible three-component condensate has been…

量子气体 · 物理学 2023-08-01 Arpana Saboo , Soumyadeep Halder , Subrata Das , Sonjoy Majumder

The standard magnetorotational instability (SMRI) is a promising mechanism for turbulence and rapid accretion in astrophysical disks. It is a magnetohydrodynamic (MHD) instability that destabilizes otherwise hydrodynamically stable disk…

等离子体物理 · 物理学 2022-09-20 Yin Wang , Erik P. Gilson , Fatima Ebrahimi , Jeremy Goodman , Kyle J. Caspary , Himawan W. Winarto , Hantao Ji

We use the machinery usually employed for studying the onset of Rayleigh--B\'enard convection in hydro- and magnetohydro-dynamic settings to address the onset of convection induced by the magnetothermal instability and the…

流体动力学 · 物理学 2016-06-01 Himanshu Gupta , Shailendra K. Rathor , Martin E. Pessah , Sagar Chakraborty

The nonaxisymmetric 'kink-type' Tayler instability (TI) of toroidal magnetic fields is studied for conducting incompressible fluids of uniform density between two infinitely long cylinders rotating around the same axis. It is shown that for…

太阳与恒星天体物理 · 物理学 2015-05-13 G. Ruediger , M. Schultz

Tayler instability of toroidal magnetic fields $B_\phi$ is broadly invoked as a trigger for turbulence and angular momentum transport in stars. This paper presents a systematic revision of the linear stability analysis for a rotating,…

太阳与恒星天体物理 · 物理学 2024-10-29 Valentin A. Skoutnev , Andrei M. Beloborodov

We present 3D MHD simulations of purely toroidal and mixed poloidal-toroidal magnetic field configurations to study the behavior of the Tayler instability. For the first time the simultaneous action of rotation and magnetic diffusion are…

太阳与恒星天体物理 · 物理学 2015-05-27 Juan C. Ibañez-Mejia , Jonathan Braithwaite

We consider the long-standing problem of Rayleigh-Taylor instability with variable acceleration, and focus on the early-time dynamics of an interface separating incompressible ideal fluids of different densities subject to an acceleration…

等离子体物理 · 物理学 2019-06-25 Des L. Hill , Aklant K. Bhowmick , Snezhana I. Abarzhi

We investigate the development of the magnetic Rayleigh-Taylor instability at the inner edge of an astrophysical disk around a spinning central black hole. We solve the equations of general relativity that govern small amplitude…

广义相对论与量子宇宙学 · 物理学 2018-12-26 Demetrios Papadopoulos , Ioannis Contopoulos

Decades ago S. Lundquist, S. Chandrasekhar, P.H. Roberts and R. J.~Tayler first posed questions about the stability of Taylor-Couette flows of conducting material under the influence of large-scale magnetic fields. These and many new…

等离子体物理 · 物理学 2018-05-23 Günther Rüdiger , Marcus Gellert , Rainer Hollerbach , Manfred Schultz , Frank Stefani

The linear stability of MHD Taylor-Couette flow of infinite vertical extension is considered for liquid sodium with its small magnetic Prandtl number Pm of order of 10^-5 and an uniform axial magnetic field. The sign of the constant a in…

天体物理学 · 物理学 2016-08-16 G. Rüdiger , M. Schultz , D. Shalybkov

We analyze an analog of the hydrodynamic Rayleigh-Taylor instability for the liquid-solid phase interface under non-uniform growth of the solid phase. The development of the instability starts on conditions of an accelerated interface…

其他凝聚态物理 · 物理学 2009-11-13 S. N. Burmistrov , L. B. Dubovskii , V. L. Tsymbalenko

The onset of the Rayleigh-Taylor instability is studied a compressible Brownian Yukawa fluid mixture on the ``molecular'' length and time scales of the individual particles. As a model, a two-dimensional phase-separated symmetric binary…

软凝聚态物质 · 物理学 2007-05-23 A. Wysocki , H. Löwen

It is shown how the variable density model (VDM) that governs the Rayleigh-Taylor instability (RTI) for the miscible mixing of two incompressible fluids can be transformed into a diffusive version of the inhomogeneous, incompressible…

流体动力学 · 物理学 2021-08-03 John D. Gibbon

We study the saturation near threshold of the axisymmetric magnetorotational instability (MRI) of a viscous, resistive, incompressible fluid in a thin-gap Taylor-Couette configuration. A vertical magnetic field, Keplerian shear and no-slip,…

天体物理学 · 物理学 2009-11-13 O. M. Umurhan , O. Regev , K. Menou