The importance of Righi-Leduc heat flux to the ablative Rayleigh-Taylor instability during a laser irradiating targets

被引：0

作者：

Ye Cui ^{[1
]}

XiaoHu Yang ^{[1
,2
]}

YanYun Ma ^{[3
,2
]}

GuoBo Zhang ^{[1
]}

BiHao Xu ^{[1
]}

ZeHao Chen ^{[1
]}

Ze Li ^{[1
]}

FuQiu Shao ^{[4
]}

Jie Zhang ^{[5
,2
]}

机构：

[1] Department of Nuclear Science and Technology, National University of Defense Technology

[2] Collaborative Innovation Centre of IFSA, Shanghai Jiao Tong University

[3] College of Advanced Interdisciplinary Studies, National University of Defense Technology

[4] Department of Physics, National University of Defense Technology

[5] Key Laboratory for Laser Plasmas (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong

来源：

High Power Laser Science and Engineering | 2024年 / 12卷 / 03期

关键词：

D O I：

暂无

中图分类号：

O53 [等离子体物理学]; TN24 [激光技术、微波激射技术];

学科分类号：

070204 ;

摘要：

The Righi±Leduc heat flux generated by the self-generated magnetic field in the ablative Rayleigh±Taylor instability driven by a laser irradiating thin targets is studied through two-dimensional extended-magnetohydrodynamic simulations. The perturbation structure gets into a low magnetization state though the peak strength of the self-generated magnetic field could reach hundreds of teslas. The Righi±Leduc effect plays an essential impact both in the linear and nonlinear stages, and it deflects the total heat flux towards the spike base. Compared to the case without the self-generated magnetic field included, less heat flux is concentrated at the spike tip, finally mitigating the ablative stabilization and leading to an increase in the velocity of the spike tip. It is shown that the linear growth rate is increased by about 10%and the amplitude during the nonlinear stage is increased by even more than 10%due to the feedback of the magnetic field,respectively. Our results reveal the importance of Righi±Leduc heat flux to the growth of the instability and promote deep understanding of the instability evolution together with the self-generated magnetic field, especially during the acceleration stage in inertial confinement fusion.

引用

页码：14 / 24

页数：11

共 29 条

[21] Numerical study of the high-intensity heat conduction effect on turbulence induced by the ablative Rayleigh-Taylor instability
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Gao, Congzhang
Yu, Chengxin
Xu, Xuefeng
Fan, Zhengfeng
Wang, Pei
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[22] Effect of a magnetic field on the growth rate of the Rayleigh-Taylor instability of a laser-accelerated thin ablative surface
Rudraiah, N
Krishnamurthy, BS
Jalaja, AS
Desai, T
LASER AND PARTICLE BEAMS, 2004, 22 (01) : 29 - 33
[23] Formation of initial perturbation of Rayleigh-Taylor instability in supernovae and laser-irradiated targets - Is there any similarity?
Azechi, H
Shigemori, K
Nakai, M
Miyanaga, N
Takabe, H
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2000, 127 (02): : 219 - 225
[24] Rayleigh-Taylor instability for thin viscous gas films: Application to critical heat flux and minimum film boiling
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Kim, Kyung Doo
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[25] Revisiting the Rayleigh-Taylor instability and critical heat flux with R-123 for different heater sizes and pressures
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[26] RAYLEIGH-TAYLOR INSTABILITY GROWTH-RATES IN TARGETS ACCELERATED WITH A LASER-BEAM SMOOTHED BY INDUCED SPATIAL INCOHERENCE
GRUN, J
EMERY, ME
MANKA, CK
LEE, TN
MCLEAN, EA
MOSTOVYCH, A
STAMPER, J
BODNER, S
OBENSCHAIN, SP
RIPIN, BH
PHYSICAL REVIEW LETTERS, 1987, 58 (25) : 2672 - 2675
[27] Numerical simulations of the ablative Rayleigh-Taylor instability in planar inertial-confinement-fusion targets using the FastRad3D code
Bates, J. W.
Schmitt, A. J.
Karasik, M.
Zalesak, S. T.
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[28] Revisiting heater size sensitive pool boiling critical heat flux using neural network modeling: Heater length of the half of the Rayleigh-Taylor Instability Wavelength maximizes CHF
He, Mingfu
Lee, Youho
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[29] THE RAYLEIGH-TAYLOR INSTABILITY IN ABLATIVELY ACCELERATED TARGETS WITH 1-MU-M, 1/2-MU-M, AND 1/4-MU-M LASER-LIGHT
EMERY, MH
DAHLBURG, JP
GARDNER, JH
PHYSICS OF FLUIDS, 1988, 31 (05) : 1007 - 1016

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