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

作　　者：Zhong-Yuan Zhu Yun-Xing Liu Ying-Jun Li Jie Zhang 朱仲源;刘云星;李英骏;张杰(School of Science,China University of Mining and Technology,Beijing 100083,China;Double-cone Ignition(DCI)Joint Team,State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology,Beijing 100083,China;Double-cone Ignition(DCI)Joint Team,Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China)

机构地区：[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

出　　处：《Chinese Physics B》2022年第10期450-457,共8页中国物理B（英文版）

基　　金：Project supported by the Strategic Priority Research Program of Chinese Academy of Sciences (Grant Nos. XDA 25051000 and XDA 25010100)。

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 

分 类 号：O53[理学—等离子体物理] O35[理学—物理]