Abstract:

Numerical simulation is employed for the HL-2A modification, which includes the optimum design of zero-field in the start-up phase, the limiter equilibrium configuration, the single/double null divertor equilibrium configuration, and the equilibrium configuration evolution from gas breakdown to current plateau. Results show that the new program can satisfy the design requirement.

Key words: Poloidal field coil, Null field, Equilibrium

摘要：

对HL-2A装置的改造方案进行数值模拟，获得了放电初始阶段零场区域设计的最佳方案、等离子体限制器平衡位形、单零偏滤器平衡位形和双零偏滤器平衡位形以及从气体击穿到等离子体电流平顶的等离子体平衡位形的演化过程。计算结果表明，该装置设计方案能够满足装置预期的设计参数要求。

关键词: 极向场线圈, 零场, 平衡位形