Z箍缩内爆的MARED程序1维模拟分析
Simulation of Z-pinch implosion using MARED code
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摘要: 研制可靠的数值模拟工具对Z箍缩内爆产生X光辐射过程进行理论研究、实验分析以及负载设计至关重要。介绍了2维三温辐射磁流体力学程序（MARED）的物理方案，给出了MARED程序的1维检验结果，验证表明MARED程序适用不同装置条件、不同负载参数。结合丝阵Z箍缩实验的数值模拟和分析表明：相同负载质量条件下，钨丝阵内爆产生的X光辐射功率远大于铝丝阵产生的X光功率；相同负载电流条件下，负载质量越大，计算得到X光功率越低；X光功率随着负载电流增加而增加。Abstract: The physical model of a two-dimensional three-temperature radiation magneto-hydrodynamics code, named MARED, is introduced. The code’s 1 D simulation results are also presented, which include results for different currents and load parameters on facilities of Saturn and Qiangguang-Ⅰ. The plasma parameters’ spatio-temporal distributions are obtained, and their self-consistent dynamic variations suggest that MARED code applies to simulations on different pulse power facilities and load conditions. By comparing results with different load materials, it is found that X-ray power of tungsten wire-array implosion is greater than that of aluminium wire-array for the same load mass. In addition, MARED simulations also show that the calculated X-ray power goes up with the load current, and goes
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Key words:
- z-pinch /
- implosion plasma /
- wire-array load /
- radiation mhd simulation /
- mared code /
- x-ray radiation
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