Analytical Studies on the Nonlinear Oscillation Due to an m=1 Non-Resonant Current-Driven Mode in RFP Plasmas

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概要

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• Analytical studies are presented on the nonlinear oscillation due to a single non-resonant current-driven mode with poloidal mode number of' m = 1 in the vicinity of amarginally stable state in RFP plasmas. A perturbation expansion with respect to thedifference of the toroidal wave number from one at the marginally stable state is usedtogather with the multiple-time-scale method. The system of equations governing thetime development of the amplitude of the m=I mode is obtained, which indicatesthat the nonlinear oscillation is possible in RFP plasmas with a relatively high Snumber (Ss 10') and that the oscillation is interpreted as an arnplitude oscillation ofthe m = l mode. The analytical results by using the perturba-lion theory well explainthose of the numerical simulation.

• 1987-11-15

著者

• Nakajima Noriyoshi

  Institute Of Plasma Physics Nagoya University

関連論文

• Dissipgtive Effects on Stable RFP Configurations
• Nonlinear Phenomena Due to an m=1 Non-Resonant Current-Driven Mode in RFP with Relatively High S Number
• Analytical Studies on the Nonlinear Oscillation Due to an m=1 Non-Resonant Current-Driven Mode in RFP Plasmas

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