Nonlinear Evolution of Jet-Like Spikes from the Single-Mode Ablative   Rayleigh-Taylor Instability with Preheating

doi:10.1088/1009-0630/15/10/01

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	Nonlinear Evolution of Jet-Like Spikes from the Single-Mode Ablative Rayleigh-Taylor Instability with Preheating
	Wang Lifeng ; Ye Wenhua ; Fan Zhengfeng ; Wu Junfeng ; Li Yingjun ; Zhang Weiyan ; He Xiantu
刊名	plasma science technology
	2013
关键词	Rayleigh-Taylor instability preheating jet-like spike bubble acceleration spike deceleration CONSISTENT STABILITY ANALYSIS KELVIN-HELMHOLTZ INSTABILITY INERTIAL CONFINEMENT FUSION FROUDE NUMBERS GROWTH-RATES TARGETS FRONTS STABILIZATION ASTROPHYSICS
DOI	10.1088/1009-0630/15/10/01
英文摘要	In this research, the nonlinear evolution of jet-like spikes in the single-mode ablative Rayleigh-Taylor instability (ARTI) in the presence of preheating, is studied numerically. It is demonstrated that the preheating plays an essential role in the formation of jet-like spikes in the nonlinear ARTI. The evolution of jet-like spikes in the ARTI with preheating consists of three stages with distinctly different distinguishing features. In the early stage, the preheating contributes to significantly increase the density-gradient scale length and broaden the velocity profile of the ablation surface, where the former can reduce the linear growth of the ARTI and mitigate the growth of its harmonics. In the middle stage, the ablative Kelvin-Helmholtz instability is dramatically suppressed due to the ablation effects. In the late stage, the jet's length (i.e. bubble-spike amplitude) is further increased by the bubble acceleration in the highly nonlinear ARTI, resulting eventually in the formation of jet-like spikes.; Physics, Fluids & Plasmas; SCI(E); EI; 中国科学引文数据库(CSCD); 0; 10; 961-968; 15
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/391002]
专题	工学院
推荐引用方式 GB/T 7714	Wang Lifeng,Ye Wenhua,Fan Zhengfeng,et al. Nonlinear Evolution of Jet-Like Spikes from the Single-Mode Ablative Rayleigh-Taylor Instability with Preheating[J]. plasma science technology,2013.
APA	Wang Lifeng.,Ye Wenhua.,Fan Zhengfeng.,Wu Junfeng.,Li Yingjun.,...&He Xiantu.(2013).Nonlinear Evolution of Jet-Like Spikes from the Single-Mode Ablative Rayleigh-Taylor Instability with Preheating.plasma science technology.
MLA	Wang Lifeng,et al."Nonlinear Evolution of Jet-Like Spikes from the Single-Mode Ablative Rayleigh-Taylor Instability with Preheating".plasma science technology (2013).