Scholarlink

Abstract <p>A model for calculating the distribution of poloidal magnetic fields in the MEPhIST-0 tokamak implemented in the COMSOL Multiphysics environment is presented. The model makes it possible to calculate the spatiotemporal distribution of poloidal magnetic fields according to a given dependence of the current in the elements of the tokamak magnetic system versus time, taking into account a conductive vacuum chamber and a toroidal solenoid with a preferential direction of the toroidal current component. The parameters of the model were selected on the basis of experimental data on the distribution of the poloidal magnetic flux obtained using the voltage loop of the MEPhIST-0 tokamak. Using the developed model for calculating magnetic fields, a set of input parameters of the tokamak pulse is selected for which the discharge is successfully initiated.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Simulation of Magnetic Fields in the MEPhIST-0 Tokamak at the Beginning of Discharge

  • 期刊论文

  • 发表日期：

    2026年8月2日

查看全文
  • I. I. Pashkov,
  • A. S. Prishvitsyn,
  • N. E. Efimov,
  • F. S. Podolyako,
  • S. A. Krat

摘要

Abstract

A model for calculating the distribution of poloidal magnetic fields in the MEPhIST-0 tokamak implemented in the COMSOL Multiphysics environment is presented. The model makes it possible to calculate the spatiotemporal distribution of poloidal magnetic fields according to a given dependence of the current in the elements of the tokamak magnetic system versus time, taking into account a conductive vacuum chamber and a toroidal solenoid with a preferential direction of the toroidal current component. The parameters of the model were selected on the basis of experimental data on the distribution of the poloidal magnetic flux obtained using the voltage loop of the MEPhIST-0 tokamak. Using the developed model for calculating magnetic fields, a set of input parameters of the tokamak pulse is selected for which the discharge is successfully initiated.