强激光与粒子束, 2014, 26 (4): 045050, 网络出版: 2014-04-24  

Z箍缩丝阵动态烧蚀的二维数值模拟

Two-dimensional numerical investigation of the dynamic ablation of Z-pinch wire-array
作者单位
1 中国工程物理研究院 流体物理研究所, 脉冲功率科学与技术重点实验室, 四川 绵阳 621999
2 中国科学技术大学 近代物理系, 合肥 230026
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.
参考文献

[1] Aleksandrov V V, Branitskii A V, Volkov G S, et al. Dynamics of heterogeneous liners with prolonged plasma creation[J]. Plasma Phys Rep, 2001, 27(2): 89-109.

[2] Sasorov P V, Oliver B V, Yu E P, et al. One-dimensional ablation in multiwire arrays[J]. Phys Plasmas, 2008, 15: 022702.

[3] Yu E P, Oliver B V, Sasorov P V, et al. Steady-state radiation ablation in the wire-array Z pinch[J]. Phys Plasmas, 2007, 14: 022705.

[4] Huang J, Ding N, Ning C, et al. Numerical investigation on the implosion dynamics of wire-array Z-pinches in (r, θ) geometry[J]. Phys Plasmas, 2012, 19: 062701.

[5] 李晶,杨礼兵,黄显宾, 等. Z箍缩丝阵烧蚀的简单模型数值模拟[J]. 强激光与粒子束, 2012, 24(1): 84-88.(Li Jing, Yang Libing, Huang Xianbin, et al. Numerical modeling of Z-pinch wire array ablation with a simple model. High Power Laser and Particle Beams, 2012, 24(1): 84-88)

[6] 段书超, 黄显宾, 杨礼兵, 等. 丝阵Z箍缩X射线辐射机制的数值分析[J]. 强激光与粒子束, 2012, 24(4): 776-779.(Duan Shuchao, Huang Xianbin, Yang Libing, et al. Numerical analysis of X-ray radiation mechanism in wire array Z-pinch. High Power Laser and Particle Beams, 2012, 24(4): 776-779)

[7] Duan Shuchao, Li Jing, Dan Jiakun, et al. A TVD implementation of constrained propagation for electromagnetic waves[J]. Advances and Applications in Fluid Mechanics, 2012, 12(2): 101-110.

[8] Jin Shi, Xin Zhouping. The relaxation schemes for systems of conservation laws in arbitrary space dimensions[J]. Comm Pure Appl Math, 1995, 48(3): 235-276.

[9] Trac H, Pen U-L. A primer on Eulerian computational fluid dynamics for astrophysics[J]. Publ Astron Soc Pac, 2003, 115(805): 303-321.

[10] Pen Ue-Li, Arras P, Wong S K. A free, fast, simple, and efficient total variation diminishing magnetohydrodynamic code[J]. The Astrophysical Journal Supplement Series, 2003, 149(2): 447-455.

[11] Olsen G L, Auer L H, Hall M L. Diffusion, P1, and other approximate forms of radiation transport[J]. Journal of Quantitative Spectroscopy and Radiative Transfer, 2000, 64(6): 619-634.

[12] Lebedev S V, Mitchell I H, Aliaga-Rossel R, et al. Azimuthal structure and global instability in the implosion phase of wire array Z-pinch experiments[J]. Phys Rev Lett, 1998, 81(19): 4152-4155.

[13] Lebedev S V, Aliaga-Rossel R, Bland S N, et al. The dynamics of wire array Z-pinch implosions[J]. Phys Plasmas, 1999, 6 (5): 2016-2022.

[14] Chittenden J P, Lebedev S V, Bell A R, et al. Plasma formation and implosion structure in wire array Z pinches[J]. Phys Rev Lett, 1999, 83 (1): 100-103.

[15] Chittenden J P, Lebedev S V, Bland S N, et al. One-, two-, and three-dimensional modeling of the different phases of wire array Z-pinch evolution[J]. Phys Plasmas, 2001, 8(5): 2305-2314.

段书超, 章征伟, 李晶, 但加坤, 周少彤, 张思群, 蔡红春, 任晓东, 黄显宾. Z箍缩丝阵动态烧蚀的二维数值模拟[J]. 强激光与粒子束, 2014, 26(4): 045050. Duan Shuchao, Zhang Zhengwei, Li Jing, Dan Jiakun, Zhou Shaotong, Zhang Siqun, Cai Hongchun, Ren Xiaodong, Huang Xianbin. Two-dimensional numerical investigation of the dynamic ablation of Z-pinch wire-array[J]. High Power Laser and Particle Beams, 2014, 26(4): 045050.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!