Zonal and streamer structures in magnetic-curvature-driven Rayleigh–Taylor instability

2001 ◽  
Vol 8 (12) ◽  
pp. 5104-5112 ◽  
Author(s):  
Amita Das ◽  
Abhijit Sen ◽  
Sangeeta Mahajan ◽  
Predhiman Kaw
Keyword(s):  
Taylor Instability ◽  
Rayleigh Taylor Instability ◽  
Curvature Driven

Nonlinear saturated states of the magnetic-curvature-driven Rayleigh–Taylor instability in three dimensions

2005 ◽  
Vol 12 (3) ◽  
pp. 032302 ◽  
Author(s):  
Amita Das ◽  
Abhijit Sen ◽  
Predhiman Kaw ◽  
S. Benkadda ◽  
Peter Beyer
Keyword(s):  
Taylor Instability ◽  
Three Dimensions ◽  
Rayleigh Taylor Instability ◽  
Curvature Driven

scholarly journals Magnetic curvature driven Rayleigh-Taylor instability revisited

2011 ◽  
Vol 29 (2) ◽  
pp. 411-413 ◽  
Author(s):  
O. A. Pokhotelov ◽  
O. G. Onishchenko
Keyword(s):  
Spatial Scales ◽  
Taylor Instability ◽  
Larmor Radius ◽  
Radius Of Curvature ◽  
Ion Temperature ◽  
Plasma Inhomogeneity ◽  
Hydrodynamic Description ◽  
Rayleigh Taylor Instability ◽  
Field Lines ◽  
Curvature Driven

Abstract. The problem of incomplete finite ion Larmor radius (FLR) stabilization of the magnetic curvature driven Rayleigh-Taylor instability (RTI) in low beta plasma with homogeneous ion temperature is investigated. For this purpose a model hydrodynamic description of nonlinear flute waves with arbitrary spatial scales compared to the ion Larmor radius is developed. It is shown that the RTI is not stabilized by FLR effects in a plasma with cold electrons when the ratio of characteristic spatial scale of the plasma inhomogeneity to local effective radius of curvature of the magnetic field lines is larger than 1/4. The crucial role in the absence of the complete FLR stabilization plays the contribution of the compressibility of the polarization part of the ion velocity.

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