Effect of ablated-plasma on the implosion dynamics of wire array Z pinches

NUCLEAR FUSION AND PLASMA PHYSICS ›› 2010, Vol. 30 ›› Issue (3): 197-202.

• Plasma Physics • Previous Articles Next Articles

Effect of ablated-plasma on the implosion dynamics of wire array Z pinches

ZHANG Zheng-wei, DING Ning, HUANG Jun

(1. Graduated School, China Academy of Engineering Physics, Beijing 100088; 2. Institute of Applied Physics and Computational Mathematics, Beijing 100088)

Received:2009-12-14 Revised:2010-06-29 Online:2010-09-15 Published:2011-08-18

消融等离子体对金属丝阵Z箍缩内爆动力学的影响

章征伟，丁宁，黄俊

(1. 中国工程物理研究院北京研究生部，北京 100088；2. 北京应用物理与计算数学研究所，北京 100094)

作者简介:章征伟(1985-)，男，安徽南陵人，在读硕士研究生，等离子体物理专业。
基金资助:
国家自然科学基金资助项目(10575014, 10635050, 10775021, 10975022)

Abstract

Abstract: A self-consistent ablation-implosion model was established in which Rocket model and snowplow model were well combined. The effects of ablated plasma on the implosion dynamics of wire array Z pinches were studied and a rational implosion trajectory was obtained. The implosion time, velocity and kinetic energy were calculated and the results were compared with that of the zero-dimension thin shell model. It was found that the implosion kinetic energy and the mass of wire array (per unit length) for the maximal kinetic energy calculated from our model was less and smaller than the zero-dimension model respectively.

Key words: Z pinches, Ablated-plasma of wire array, Rocket model, Snowplow model

摘要： 结合火箭模型和雪耙模型，建立了完整自洽的丝阵Z箍缩消融-内爆模型，分析了消融等离子体对丝阵Z箍缩内爆动力学的影响，得到了比零维薄壳模型合理的内爆轨迹。在考虑消融等离子体向轴运动的情况下，计算了丝阵Z箍缩的内爆时间、内爆速度和动能，并且与零维薄壳模型进行了对比。结果表明，考虑消融等离子体运动得到的内爆动能低于零维薄壳模型计算结果，其内爆动能最大值所对应的负载线质量也低于薄壳模型。

关键词: Z箍缩, 丝阵消融等离子体, 火箭模型, 雪耙模型

CLC Number:

O532

ZHANG Zheng-wei, DING Ning, HUANG Jun. Effect of ablated-plasma on the implosion dynamics of wire array Z pinches[J]. NUCLEAR FUSION AND PLASMA PHYSICS, 2010, 30(3): 197-202.

章征伟，丁宁，黄俊. 消融等离子体对金属丝阵Z箍缩内爆动力学的影响[J]. 核聚变与等离子体物理, 2010, 30(3): 197-202.

References

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Effect of ablated-plasma on the implosion dynamics of wire array Z pinches

消融等离子体对金属丝阵Z箍缩内爆动力学的影响

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