完全稳定化MRT的可能性及应用于聚变的潜力

段书超; 谢卫平; 王刚华

doi:10.11884/HPLPB201830.170454

完全稳定化MRT的可能性及应用于聚变的潜力

doi: 10.11884/HPLPB201830.170454

段书超^{1, 2,},
谢卫平¹,
王刚华¹

1.
中国工程物理研究院流体物理研究所, 四川绵阳 621999
2.
中国科学技术大学近代物理系, 合肥 230026

基金项目:

国家自然科学基金项目 11405167

详细信息

作者简介:
段书超(1980—)，男，主要从事等离子体物理数值模拟与磁流体力学程序开发; s.duan@163.com

中图分类号: TL6; O534
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出版历程
- 收稿日期: 2017-11-10
- 修回日期: 2017-12-04
- 刊出日期: 2018-02-15

Possibility of complete stabilization of magneto-Rayleigh-Taylor instabilities and potential for fusion

1.
Institute of Fluid Physics, CAEP, P. O. Box 919-105, Mianyang 621999, China
2.
Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China

摘要

摘要: 提出采用方向时变(旋转)的驱动磁场(交替Θ-Z箍缩构型)或者多级嵌套Θ-Z箍缩构型来抑制动态Z箍缩的MRT不稳定性的概念，介绍了对交替/嵌套Θ-Z箍缩MRT不稳定性的最新研究进展，结果表明适当优化的交替/嵌套Θ-Z箍缩的MRT不稳定性明显远低于标准Θ箍缩或者Z箍缩的，一定厚度时甚至被完全致稳，这表明交替/嵌套Θ-Z箍缩构型具有潜力应用于Θ-Z箍缩套筒惯性聚变。
- 磁-瑞利-泰勒不稳定性 /
- 动态Z箍缩 /
- 磁场方向旋转 /
- Θ-Z箍缩套筒惯性聚变 /
- 交替/嵌套Θ-Z箍缩 /
- 惯性约束聚变 /
- 磁惯性约束聚变
Abstract: The idea of using a directional time-varying(rotating) driving magnetic field (the alternant theta-Z-pinch configuration) or the multi-nested theta-Z-pinch configuration to suppress magneto-Rayleigh-Taylor instabilities in a dynamic Z-pinch was proposed between 2014 and 2016. This paper reports the latest research progress on magneto-Rayleigh-Taylor instabilities in alternant/nested theta-Z-pinches. The magneto-Rayleigh-Taylor instability growth of a properly optimized alternant/nested theta-Z-pinch is significantly lower than that of a pure theta-pinch or Z-pinch. The instability is completely stabilized at a certain thickness of the liner. These show the bright potential of alternant/nested theta-Z-pinch for theta-Z-pinch liner inertial fusion.
- magneto-Rayleigh-Taylor instability /
- dynamic Z-pinch /
- rotating magnetic field /
- theta-Z liner inertial fusion /
- alternant/nested theta-Z-pinch /
- inertial confinement fusion /
- magneto-inertial fusion

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图 1 交替/嵌套Θ-Z箍缩示意图

Figure 1. Schematic for alternant/nested Θ-Z-pinches

下载: 全尺寸图片幻灯片

图 2 两种电流分解情况下经过初步优化的交替Θ-Z箍缩的主导模式末态时的最大e倍数

Figure 2. Optimized maximum e-folding numbers at stagnation for dominant mode in two cases of drivings when h∈[10^-7, 0.1]

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图 3 两种嵌套Θ-Z箍缩在不同的初始内部磁场情况下的某个模式的e倍数的演化过程

Figure 3. E-folding numbers' evolving with different initial internal magnetic fields for two kinds of nested Θ-Z-pinches

下载: 全尺寸图片幻灯片

参考文献(8)

[1]	Ryutov D D, Derzon M S, Matzen M K. The physics of fast Z-pinches[J]. Rev Mod Phys, 2000, 72: 167.
[2]	Slutz S A, Vesey R A. High-gain magnetized inertial fusion[J]. Phys Rev Lett, 2012, 108: 025003. doi: 10.1103/PhysRevLett.108.025003
[3]	段书超. 动态Z箍缩中的磁-瑞利-泰勒不稳定性研究[R]. 国家自然科学基金委, 2014. Duan Shuchao. A research on magneto-Rayleigh-Taylor instability in dynamic Z-pinches. National Natural Science Foundation of China, 2014
[4]	段书超. 多级嵌套Θ-Z箍缩套筒的MRT不稳定性[C]//第九届全国流体力学会议. 2016. Duan Shuchao. Magneto-Rayleigh-Taylor instability of the multi-nested theta-Z-pinch liners//Proc of 9th Chinese Fluid Mechanics Conference. 2016
[5]	Duan Shuchao. Magneto-Rayleigh-Taylor instability driven by a rotating magnetic field[DB/OL]. eprint arXiv: 1704.01241.
[6]	Duan Shuchao. Magneto-Rayleigh-Taylor instability driven by a rotating magnetic field[C]//Proc 2nd International Conference on Matter and Radiation at Extremes. 2017.
[7]	段书超, 李定, 谢卫平. 磁场方向时变对MRT不稳定性的抑制作用[C]//第十八届全国等离子体科学技术会议. 2017. Duan Shuchao, Li Ding, Xie Weiping. The suppressing effect of the directional time-varying of magnetic field on magneto-Rayleigh-Taylor instability//Proc of 18th National Conference on Plasma Science and Technology. 2017
[8]	段书超, 谢卫平, 李定. 交替/嵌套Θ-Z箍缩套筒惯性聚变概念[C]//第五届全国脉冲功率会议. 2017. Duan Shuchao, Xie Weiping, Li Ding. The concept of alternant/nested theta-Z-pinch Liner Inertial Fusion (Theta-Z-LIF)//Proc of 5th Chinese Pulsed Power Conference. 2017