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(THP2/07) Nonlinear Evolution of Neoclassical Tearing Modes in the Presence of Sheared Flows

A. Sen¹⁾, P. K. Kaw¹⁾, D. Chandra¹⁾, M. P. Bora^1)
 
1) Institute for Plasma Research, Bhat, Gandhinagar 382428, India

Abstract.  The center manifold reduction technique is employed to study the nonlinear evolution of an ( m = 2, n = 1) neoclassical tearing mode and its first harmonic, in the presence of equilibrium sheared flows. A detailed bifurcation diagram of the reduced amplitude equations is presented delineating the parametric regimes for the occurrence of single saturated island states and oscillating island solutions.

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