Open AccessTHE KINK INSTABILITY OF A PLASMA WITH FIXED-BOUN-DARY BY THE METHOD OF INITIAL-BOUNDARY VALUES
Author(s) -
Ke Fu-Jiu,
Shen Jie-Wu,
Xu Min-Jian
Publication year - 1980
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.29.1263
Subject(s) - plasma , physics , diamagnetism , instability , boundary (topology) , magnetic field , mechanics , boundary value problem , paramagnetism , condensed matter physics , classical mechanics , mathematical analysis , mathematics , quantum mechanics
The analytic solutions and numerical solutions of the equations of magnetic surface with fixed-boundary conditions are solved for the equilibrium plasma. The pressure, the velocity and the magnetic field fluctuations are evaluated with the simplified Lax-Wendroff method. The linear growth rates, the average β and βp, and the safety factor are obtained. We find that (1) plasma with concave currents profiles is more stable than that with uniform currents profiles, and plasma with convex currents profiles is least stable; (2) plamsa with diamagnetic currents is more stable than that with paramagnetic currents.