An approach to explore the eddy currents of the new type divertor for EAST device using ANSYS code
An approach to explore the eddy currents of the new type divertor for EAST device using ANSYS code
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DOI：
10.1007/s11431-013-5429-5
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发表时间：
2013-12
期刊：
影响因子：
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通讯作者：
Changle Liu;D. Yao;J. Doody;B. Lipschultz;Lihua Zhou;Chao Liang;Zibo Zhou;Lei Cao;Tiejun Xu
中科院分区：
文献类型：
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作者：
Changle Liu;D. Yao;J. Doody;B. Lipschultz;Lihua Zhou;Chao Liang;Zibo Zhou;Lei Cao;Tiejun Xu
利用ANSYS为EAST的新型偏滤器开发了一种有效的涡流计算方法。为 EAST 设备构建了双零偏滤器的 3D 模型，用于评估这些组件上的涡流和电磁 (EM) 力。模型的主要输入是等离子体电流和极向场线圈电流，它们使用从 EAST 放电测量的实验数据加载到模型中。这些电流产生的磁场与产生 EAST 放电的磁场相匹配，这些磁场的时间变化在偏滤器中产生涡流，以及由此产生的电磁力。此外，还讨论了前10个时间步的涡流产生和变化趋势。这表明瞬态模式启动之前的静态分析可以解决初始时间步长中的涡流起源。通过这种方法，EAST新型偏滤器的电磁瞬态响应可以基于ANSYS仿真进行预测。此外，该方法也是估计聚变反应堆容器内组件在中断期间的电磁结果的有效方法。
An effective method for eddy current calculation has been developed for EAST’s new divertor by using ANSYS. A 3D model of a double null divertor for the EAST device was built to evaluate eddy currents and electromagnetic (EM) forces on these components. The main input to the model is the plasma current and poloidal field coil currents, which are loaded into the model using experimental data measured from the EAST discharges. These currents generate magnetic fields that match those producing an EAST discharge, and the time variation of these fields produces the eddy currents in the divertors, along with from the resulting EM forces. In addition, the first 10 time steps were discussed for the eddy current generation and changing trend. It indicates that a static analysis before a transient mode start can solve the eddy current origination in the initial time steps. With this method, the EM transient response of EAST’s new divertor can be predicted based on ANSYS simulations. Furthermore, the method is also an effective approach to estimate the EM results for the in-vessel components of a fusion reactor during a disruption.