论文信息 - Nonlinear studies of m = 1 modes in high-temperature plasmas

Nonlinear studies of m = 1 modes in high-temperature plasmas

Nonlinear evolution of the m=1 mode is examined in high‐temperature plasmas where the mode is in the semicollisional or collisionless regime. Unlike the finite −Δ’(m≥2) tearing modes, the nonlinear evolution of which is collisional, both the semicollisional and collisionless m=1 modes exhibit nonlinearly enhanced growth rates that far exceed their linear values, thus making their nonlinear evolution collisionless; this accelerated growth of a collisionless m=1 mode may explain the fast sawtooth crashes observed in large tokamaks.

A. Y. Aydemir | A. Aydemir

[1] Paul H. Rutherford,et al. Nonlinear growth of the tearing mode , 1973 .

[2] M. Rosenbluth,et al. Nonlinear properties of the internal m = 1 kink instability in the cylindrical tokamak , 1973 .

[3] N. R. Sauthoff,et al. Studies of internal disruptions and m=1 oscillations in tokamak discharges with soft--X-ray techniques , 1974 .

[4] Y. C. Lee,et al. Nonlinear Evolution of Collisionless and Semicollisional Tearing Modes , 1977 .

[5] J. Drake,et al. Kinetic theory of tearing instabilities , 1977 .

[6] R. Dagazian. Effect of convection on magnetohydrodynamic kink stability , 1979 .

[7] J. Meiss,et al. Analytic theory of the nonlinear m=1 tearing mode , 1985 .

[8] R. Hazeltine,et al. Hamiltonian four-field model for nonlinear tokamak dynamics , 1987 .

[9] F. Waelbroeck. Current sheets and nonlinear growth of the m=1 kink-tearing mode , 1989 .

[10] A. Aydemir. Magnetohydrodynamic modes driven by anomalous electron viscosity and their role in fast sawtooth crashes , 1990 .

[11] D. Biskamp. Algebraic nonlinear growth of the resistive kink instability , 1991 .

[12] A. Aydemir. Linear studies of m=1 modes in high‐temperature plasmas with a four‐field model , 1991 .

[13] B. Rogers,et al. Two‐fluid magnetohydrodynamic description of the internal kink mode in tokamaks , 1992 .