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Related papers: Two-Dimensional Kelvin-Helmholtz Instability with …

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We investigate through high resolution 3D simulations the nonlinear evolution of compressible magnetohydrodynamic flows subject to the Kelvin-Helmholtz instability. We confirm in 3D flows the conclusion from our 2D work that even apparently…

Astrophysics · Physics 2009-10-31 Dongsu Ryu , T. W. Jones , Adam Frank

Studies have shown that in sheared $\mathbf{E}\times\mathbf{B}$ flows in an inhomogeneous ionospheric plasma, the gradient drift (GDI) or the Kelvin-Helmholtz (KHI) instability may grow. This work examines the conditions that cause one of…

Plasma Physics · Physics 2021-06-02 C. Rathod , B. Srinivasan , W. Scales

Recent high resolution AIA/SDO images show evidence of the development of the Kelvin-Helmholtz instability, as coronal mass ejections (CMEs) expand in the ambient corona. A large-scale magnetic field mostly tangential to the interface is…

Solar and Stellar Astrophysics · Physics 2016-01-15 Daniel O. Gomez , Edward E. DeLuca , Pablo D. Mininni

We model an imaged Kelvin-Helmholtz (KH) instability on a coronal mass ejecta (CME) in the lower corona by investigating conditions under which kink ($m = 1$) and $m = -3$ magnetohydrodynamic (MHD) modes in an uniformly twisted flux tube…

Solar and Stellar Astrophysics · Physics 2015-01-28 I. Zhelyazkov , T. V. Zaqarashvili , R. Chandra

The Kelvin-Helmholtz instability has been proposed as a mechanism to extract energy from magnetohydrodynamic (MHD) kink waves in flux tubes, and to drive dissipation of this wave energy through turbulence. It is therefore a potentially…

Solar and Stellar Astrophysics · Physics 2018-10-17 Andrew Hillier , Adrian Barker , Iñigo Arregui , Henrik Latter

We study here the arising of Kelvin--Helmholtz Instability (KHI) in one fast jet of 2014 April 16 observed by the Atmospheric Imaging Assembly (AIA) on board Solar Dynamics Observatory (SDO) in different UV and EUV wavelengths. The…

Solar and Stellar Astrophysics · Physics 2018-05-16 M. Bogdanova , I. Zhelyazkov , R. Joshi , R. Chandra

Kelvin-Helmholtz instability (KHI) is a basic physical process in fluids and magnetized plasmas, with applications successfully modelling e.g. exponentially growing instabilities observed at magnetospheric and heliospheric boundaries, in…

Solar and Stellar Astrophysics · Physics 2018-07-10 Xiaohong Li , Jun Zhang , Shuhong Yang , Yijun Hou , Robert Erdelyi

This study presents three-dimensional (3D) resistive Hall-magnetohydrodynamic simulations of the Kelvin-Helmholtz instability (KHI) dynamics at Earth's magnetospheric flanks during northward interplanetary magnetic field periods. By…

Space Physics · Physics 2024-05-24 Silvia Ferro , Matteo Faganello , Francesco Califano , Fabio Bacchini

The MHD equations, as a collisional fluid model that remains in local thermodynamic equilibrium (LTE), have long been used to describe turbulence in myriad space and astrophysical plasmas. Yet, the vast majority of these plasmas, from the…

High Energy Astrophysical Phenomena · Physics 2024-09-30 S. Majeski , M. W. Kunz , J. Squire

We study the linear and non-linear development of the Kruskal-Schwarzchild Instability in a relativisitically expanding striped wind. This instability is the generalization of Rayleigh-Taylor instability in the presence of a magnetic field.…

High Energy Astrophysical Phenomena · Physics 2017-12-27 Ramandeep Gill , Jonathan Granot , Yuri Lyubarsky

We have carried out simulations of the nonlinear evolution of the magnetohydrodynamic (MHD) Kelvin-Helmholtz (KH) instability for compressible fluids in $2\frac{1}{2}$-dimensions, extending our previous work by Frank et al (1996) and Jones…

Astrophysics · Physics 2016-08-30 Hyunju Jeong , Dongsu Ryu , T. W. Jones , Adam Frank

In astrophysical shear flows, the Kelvin-Helmholtz (KH) instability is generally suppressed by magnetic tension provided a sufficiently strong streamwise magnetic field. This is often used to infer upper (or lower) bounds on field strengths…

Fluid Dynamics · Physics 2026-02-04 Adrian E. Fraser , Alexis K. Kaminski , Jeffrey S. Oishi

The Kelvin-Helmholtz (KH) instability is studied in a non-Newtonian dusty plasma with an experimentally verified model [Phys. Rev. Lett. {\bf 98}, 145003 (2007)] of shear flow rate dependent viscosity. The shear flow profile used here is a…

Plasma Physics · Physics 2015-06-17 D. Banerjee , S. Garai , M. S. Janaki , N. Chakrabarti

The nonlinear evolution of collisionless plasmas is typically a multi-scale process where the energy is injected at large, fluid scales and dissipated at small, kinetic scales. Accurately modelling the global evolution requires to take into…

The Kelvin-Helmholtz Instability (KHI) has been observed in the solar atmosphere. Ion-neutral collisions may play a relevant role for the growth rate and evolution of the KHI in solar partially ionized plasmas as in, e.g., solar…

Solar and Stellar Astrophysics · Physics 2015-06-04 R. Soler , A. J. Diaz , J. L. Ballester , M. Goossens

In low-density plasma environments, such as the intracluster medium (ICM), the Larmour frequency is much larger than the ion-ion collision frequency. In such a case, the thermal pressure becomes anisotropic with respect to the magnetic…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-11 M. S. Nakwacki , E. M. de Gouveia Dal Pino , G. Kowal , R. Santos-Lima

A numerical study of the Kelvin-Helmholtz instability in compressible magnetohydrodynamics is presented. The three-dimensional simulations consider shear flow in a cylindrical jet configuration, embedded in a uniform magnetic field directed…

Astrophysics · Physics 2009-10-31 R. Keppens , G. Toth

The generation of magnetohydrodynamic (MHD) waves and their instabilities are studied in galactic gaseous rotating plasmas with the effects of the magnetic field, the self gravity, the diffusion-convection of cosmic rays as well as the gas…

Plasma Physics · Physics 2022-11-07 Jyoti Turi , A. P. Misra

The recent observations of rippled structures on the surface of the Orion molecular cloud (Bern\'{e} et al. 2010), have been attributed to the Kelvin-Helmholtz (KH) instability. The wavelike structures which have mainly seen near…

Astrophysics of Galaxies · Physics 2017-07-26 Akram Yaghouti , Mohsen Nejad-Asghar , Shahram Abbassi

We consider the linear axisymmetric stability of a differentially rotating collisionless plasma in the presence of a weak magnetic field; we restrict our analysis to wavelengths much larger than the proton Larmor radius. This is the kinetic…

Astrophysics · Physics 2009-11-07 Eliot Quataert , William Dorland , Greg Hammett