Analytical model for Rayleigh—Taylor instability in conical target conduction region

doi:10.1088/1674-1056/ac8731

中国物理B ›› 2022, Vol. 31 ›› Issue (10): 105202-105202.doi: 10.1088/1674-1056/ac8731

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Analytical model for Rayleigh—Taylor instability in conical target conduction region

Zhong-Yuan Zhu(朱仲源)¹, Yun-Xing Liu(刘云星)², Ying-Jun Li(李英骏)^1,2,†, and Jie Zhang(张杰)³

1. School of Science, China University of Mining and Technology, Beijing 100083, China;
2. Double-cone Ignition (DCI) Joint Team, State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Beijing 100083, China;
3. Double-cone Ignition(DCI) Joint Team, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

收稿日期:2022-05-22 修回日期:2022-07-19 出版日期:2022-10-16 发布日期:2022-09-27
通讯作者: Ying-Jun Li E-mail:lyj@aphy.iphy.ac.cn
基金资助:
Project supported by the Strategic Priority Research Program of Chinese Academy of Sciences (Grant Nos. XDA 25051000 and XDA 25010100).

Analytical model for Rayleigh—Taylor instability in conical target conduction region

Zhong-Yuan Zhu(朱仲源)¹, Yun-Xing Liu(刘云星)², Ying-Jun Li(李英骏)^1,2,†, and Jie Zhang(张杰)³

1. School of Science, China University of Mining and Technology, Beijing 100083, China;
2. Double-cone Ignition (DCI) Joint Team, State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Beijing 100083, China;
3. Double-cone Ignition(DCI) Joint Team, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China

Received:2022-05-22 Revised:2022-07-19 Online:2022-10-16 Published:2022-09-27
Contact: Ying-Jun Li E-mail:lyj@aphy.iphy.ac.cn
Supported by:
Project supported by the Strategic Priority Research Program of Chinese Academy of Sciences (Grant Nos. XDA 25051000 and XDA 25010100).

摘要/Abstract

摘要： This work builds an isobaric steady-state fluid analytical-physical model of the plasma conduction region in a conical target. The hydrodynamic instability in the double-cone ignition scheme^[21] for inertial confinement fusion (ICF) proposed by Zhang is studied with the built model. With this idealized model, the relevant parameters, such as density, temperature, and length of the plasma in the conduction region of the conical target under long-pulse conditions are given. The solution of the proposed analytical model dovetails with the trend of the numerical simulation. The model and results in this paper are beneficial for discussing how to attenuate Rayleigh—Taylor instability in ICF processes with conical and spherical targets.

关键词: double-cone ignition, Rayleigh—Taylor instability, conical target conduction region

Abstract: This work builds an isobaric steady-state fluid analytical-physical model of the plasma conduction region in a conical target. The hydrodynamic instability in the double-cone ignition scheme^[21] for inertial confinement fusion (ICF) proposed by Zhang is studied with the built model. With this idealized model, the relevant parameters, such as density, temperature, and length of the plasma in the conduction region of the conical target under long-pulse conditions are given. The solution of the proposed analytical model dovetails with the trend of the numerical simulation. The model and results in this paper are beneficial for discussing how to attenuate Rayleigh—Taylor instability in ICF processes with conical and spherical targets.

Key words: double-cone ignition, Rayleigh—Taylor instability, conical target conduction region

中图分类号: (Implosion symmetry and hydrodynamic instability (Rayleigh-Taylor, Richtmyer-Meshkov, imprint, etc.))

52.57.Fg

47.20.Ma (Interfacial instabilities (e.g., Rayleigh-Taylor)) 52.35.Py (Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.))

Zhong-Yuan Zhu(朱仲源), Yun-Xing Liu(刘云星), Ying-Jun Li(李英骏), and Jie Zhang(张杰). Analytical model for Rayleigh—Taylor instability in conical target conduction region[J]. 中国物理B, 2022, 31(10): 105202-105202.

Zhong-Yuan Zhu(朱仲源), Yun-Xing Liu(刘云星), Ying-Jun Li(李英骏), and Jie Zhang(张杰). Analytical model for Rayleigh—Taylor instability in conical target conduction region[J]. Chin. Phys. B, 2022, 31(10): 105202-105202.

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Analytical model for Rayleigh—Taylor instability in conical target conduction region

Analytical model for Rayleigh—Taylor instability in conical target conduction region

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