Two-dimensional numerical investigation of the dynamic ablation of Z-pinch wire-array
-
摘要: 采用FOI-PERFECT程序对局域欧姆加热主导的动态烧蚀进行了数值模拟研究, 定量诊断并比较了烧蚀率、先驱电流和烧蚀时间, 考查烧蚀阶段之初的丝等离子体的直径和丝阵的丝数对烧蚀的影响, 结果表明, 在等离子体流建立后, 随丝数或者丝径的增加, 烧蚀率增大, 先驱电流减少, 烧蚀时间减小。Abstract: The local ohmic heating dominated dynamic ablation of Z-pinch wire-array is investigated numerically in 2D geometry using FOI-PERFECT code. Mass ablation rate, precursor current and ablation time are analyzed quantitatively to investigate the effects of initial wire plasma diameter and wire number on the ablation of wire-array. Numerical results demonstrate that the increase of wire number and/or initial wire plasma diameter leads to the increase of mass ablation rate and the decrease of precursor current and ablation time. This conclusion agrees with the simulation works of other authors.
-
Key words:
- Z-pinch /
- ablation /
- magnetohydrodynamics /
- numerical modeling
点击查看大图
计量
- 文章访问数: 1848
- HTML全文浏览量: 199
- PDF下载量: 504
- 被引次数: 0