Analytical and numerical treatment of resistive drift instability in a plasma slab
- 作者: Mirnov V.1, Sauppe J.1, Hegna C.1, Sovinec C.1
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隶属关系:
- University of Wisconsin-Madison and the Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas
- 期: 卷 42, 编号 5 (2016)
- 页面: 440-449
- 栏目: Waves and Instabilities in Plasma
- URL: https://journals.rcsi.science/1063-780X/article/view/185723
- DOI: https://doi.org/10.1134/S1063780X16050123
- ID: 185723
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详细
An analytic approach combining the effect of equilibrium diamagnetic flows and the finite ionsound gyroradius associated with electron−ion decoupling and kinetic Alfvén wave dispersion is derived to study resistive drift instabilities in a plasma slab. Linear numerical computations using the NIMROD code are performed with cold ions and hot electrons in a plasma slab with a doubly periodic box bounded by two perfectly conducting walls. A linearly unstable resistive drift mode is observed in computations with a growth rate that is consistent with the analytic dispersion relation. The resistive drift mode is expected to be suppressed by magnetic shear in unbounded domains, but the mode is observed in numerical computations with and without magnetic shear. In the slab model, the finite slab thickness and the perfectly conducting boundary conditions are likely to account for the lack of suppression.
作者简介
V. Mirnov
University of Wisconsin-Madison and the Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas
编辑信件的主要联系方式.
Email: vvmirnov@wisc.edu
美国, Madison, WI
J. Sauppe
University of Wisconsin-Madison and the Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas
Email: vvmirnov@wisc.edu
美国, Madison, WI
C. Hegna
University of Wisconsin-Madison and the Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas
Email: vvmirnov@wisc.edu
美国, Madison, WI
C. Sovinec
University of Wisconsin-Madison and the Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas
Email: vvmirnov@wisc.edu
美国, Madison, WI