Multi-CPU simulation of the tearing mode and (m= 1,n= 1) internal resistive kink mode

Analytic theory of the nonlinear m = 1 tearing mode

Numerical studies show that the m = 1 tearing mode continues to grow exponentially well into the nonlinear regime, in contrast with the slow, "Rutherford," growth of m > 1 modes. A single helicity calculation is presented which generalizes that of Rutherford [Phys. Fluids 16, 1903 ( 1973) ] to the case when the constant-t/! approximation is invalid. As in that theory, the parallel current becom...

Resistive tearing mode instability with shear flow and viscosity

The linear theory of the resistive tearing mode instability in slab geometry, has been recently extended by introducing the effect of equilibrium shear flow and viscosity [ Phys. Fluids 29, 2563 (1986); Phys. Fluids B 1,2224 (1989); ibid. 2,495 (1990); ibid. 2,2575 (1990) 1. In the present analysis, numerical solutions of the time-dependent resistive equations are generalized to this problem an...

Stabilization of the external kink and control of the resistive wall mode in tokamaks*

Stabilization of the external kink and control of the resistive wall mode in tokamaks* A. M. Garofalo, A. D. Turnbull, E. J. Strait, M. E. Austin, J. Bialek, M. S. Chu, E. Fredrickson, R. J. La Haye, G. A. Navratil, L. L. Lao, E. A. Lazarus, M. Okabayashi, B. W. Rice, S. A. Sabbagh, J. T. Scoville, T. S. Taylor, M. L. Walker, and The DII-D Team Columbia University, New York, New York 10027 Gene...

Verification of gyrokinetic particle simulation of current-driven instability in fusion plasmas. I. Internal kink mode

The gyrokinetic toroidal code (GTC) capability has been extended for simulating internal kink instability with kinetic effects in toroidal geometry. The global simulation domain covers the magnetic axis, which is necessary for simulating current-driven instabilities. GTC simulation in the fluid limit of the kink modes in cylindrical geometry is verified by benchmarking with a magnetohydrodynami...

H-mode plasma transport simulation in ITER with effect of neoclassical tearing mode