Author:
Pokhotelov O. A.,Onishchenko O. G.
Abstract
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.
Subject
Space and Planetary Science,Earth and Planetary Sciences (miscellaneous),Atmospheric Science,Geology,Astronomy and Astrophysics
Reference11 articles.
1. Das, A., Sen, A., Mahajan, S., and Kaw, P.: Zonal and streamer structures in magnetic-curvature-driven Rayleigh-Taylor instability, Phys. Plasmas, 8(12), 5104–5112, 2001.
2. Dastgeer, S., Singh, R., Nordman, H., Weiland, J., and Rogister, A.: Nonlinear structures in interchange mode turbulence, Phys. Rev. E, 66, 036408, 2002.
3. Kodama, Y. and Pavlenko, V. P.: Self-organized zonal flow in flute-mode turbulence of a plasma, Phys. Rev. Lett., 60(15), 1506–1509, 1988.
4. Kuvshinov, B. N. and Mikhailovskii, A. B: MHD model including small-scale perturbations in a plasma with temperature variations, Plasma Phys. Rep., 22, 529–534, 1996.
5. Mikhailovskii, A. B.: Oscillations of inhomogeneous plasma, in: Reviews of Plasma Physics, edited by: Leontovich, M. A., vol. 3, Plenum, New York, pp. 211–271, 1967.
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献