Kelvin-Helmholtz instability in magnetohydrodynamic flows
نویسندگان
چکیده
منابع مشابه
Kelvin-Helmholtz instabilities of relativistic magnetohydrodynamic planar flows
Aims. We investigate the stability properties of the interface separating two relativistic magnetized fluids in relative motion. The two fluids are governed by the (special) relativistic equations for a perfect magnetized gas in the infinite conductivity approximation. Methods. By adopting the vortex-sheet approximation, the relativistic magnetohydrodynamics equations are linearized around the ...
متن کاملKelvin-helmholtz Instability by Sph
In this paper, we have modeled the Kelvin-Helmholtz Instability (KHI) problem of an incompressible two-phase immiscible fluid in a stratified inviscid shear flow with interfacial tension using Smoothed Particle Hydrodynamics (SPH) method. The time dependent evolution of the two-fluid interface over a wide range of Richardson number (Ri) and for three different density ratios is numerically inve...
متن کاملOn Kelvin-Helmholtz instability in superfluids
The Kelvin-Helmholtz instability in superfluids is discussed, based on the first experimental observation of such instability at the interface between superfluid He-A and superfluid He-B [1]. We discuss why the Kelvin-Helmholtz criterion, the Landau critical velocity for nucleation of ripplons, and the free energy consideration all give different values for the instability treshold. 1 Classical...
متن کاملCompressible magnetohydrodynamic Kelvin–Helmholtz instability with vortex pairing in the two-dimensional transverse configuration
For a two-dimensional ~2-D! transverse configuration, where the plasma motion occurs in a 2-D plane transverse to the magnetic field, the nonlinear evolution of the magnetohydrodynamic ~MHD! Kelvin–Helmholtz ~K–H! instability is investigated by means of a 2-D MHD simulation for a convective fast magnetosonic Mach number 0.35, which is defined for the total jump of the flow velocity. The compres...
متن کاملBand gaps and the Kelvin-Helmholtz instability.
We consider the linear stability of two inviscid fluids, in the presence of gravity, sheared past each other and separated by a flexible plate. Conditions for exponential growth of velocity perturbations are found as functions of the flexural rigidity of the plate and the shear rate. This Kelvin-Helmholtz instability is then analyzed in the presence of plates with spatially periodic (with perio...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the International Astronomical Union
سال: 2006
ISSN: 1743-9213,1743-9221
DOI: 10.1017/s1743921306001384