Affiliation:
1. Institute of Fusion Science, School of Physical Science and Technology, Southwest Jiaotong University, Chengdu 610031, China
Abstract
The effects of compressibility and guiding field on the Kelvin–Helmholtz (KH) instability in a double resonant surface system are numerically investigated by using a compressible magnetohydrodynamics model. The linear growth rate and the nonlinear saturation amplitude are analyzed for different parameters. A transition from double tearing modes to the KH instability occurs depending on the compressibility and guiding field with a weak magnetic shear. These results may deepen our understanding of the properties of the KH instability with double resonant surfaces in both space and laboratory plasmas.
Funder
National Natural Science Foundation of China
Central Government Funds of Guiding Local Scientific and Technological Development for Sichuan Province
National Key R&D Program of China
Science and Technology Plan Project in Sichuan Province of China
the Chinese National Fusion Project for ITER
Subject
General Physics and Astronomy