<RESEARCH REPORT>Nonlinear Phenomena due to an m=1 Non-resonant Current-Driven Mode in RFP with Relatively High S Number

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概要

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• Nonlinear phenomena due to non-resonant current-driven modes with poloidal mode number m=1 are examined using a numerical simulation of an incompressible helical symmetric plasma with relatively high S number. It is found that the nonlinear interaction between the m=0 and m=1 modes brings a nonlinear oscillation immediately after the linear growth stage and subsequently a nonlinear reconnection takes place. This nonlinear oscillation occurs around a helical equilibrium in close vicinity to the initial axisymmetric equilibrium. It should be noted that the slow nonlinear reconnection occurs after the nonlinear oscillation is completely or almost completely damped out by the dissipation. The occurrence of this nonlinear reconnection is owing to the reversal of the current induced by a largely deformed helical flux function.

• 核融合科学研究所の論文
• 1986-12-00

著者

• Nakajima Noriyoshi

  Research Information Center Institute Of Plasma Physics Nagoya University

関連論文

• Energy and Momentum Deposition to Plasmas due to the Lower Hybrid Wave by a Finite Source
• Nonlinear Phenomena due to an m=1 Non-resonant Current-Driven Mode in RFP with Relatively High S Number

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