Simulation method for evolution of electron cyclotron current profile in tokamak
A technology of electronic cyclotron and tokamak, which is applied in the direction of electrical digital data processing, design optimization/simulation, special data processing applications, etc., can solve the problem that the simulation results cannot reflect the evolution process of the current profile, and achieve accurate description and numerical stability Strong, computationally efficient effects
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[0042] The specific implementation manners of the present invention will be further described below in conjunction with the accompanying drawings and technical solutions.
[0043] The magnetic field of the tokamak device is composed of nested magnetic surfaces, such as the attached figure 1 as shown, Indicates the large ring direction coordinates. In the tokamak discharge experiment, the role of the electron cyclotron wave driving current is mainly to suppress magnetic islands, so magnetic islands usually exist in the initial magnetic field configuration, as shown in the attached figure 2As shown, the magnetic force lines are reconnected into a magnetic island structure, where r is the small radius coordinate, and θ is the polar coordinate. Electron cyclotron waves generally act on the center of the magnetic island. Electron cyclotron wave driving current can undergo self-consistent nonlinear evolution along a given magnetic field configuration, and finally reach a steady...
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