Convergent Richtmyer-Meshkov instability on two-dimensional tri-mode interfaces

doi:10.1007/s11433-024-2471-7

	Convergent Richtmyer-Meshkov instability on two-dimensional tri-mode interfaces
	Zhai, Zhigang 1; Xu, Jinru 1; Luo XS(罗喜胜)1,2
通讯作者	Zhai, Zhigang([email protected])
发表期刊	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2024-12-01
卷号	67 期号:12 页码:14
ISSN	1674-7348
摘要	Interfacial fluid mixing driven by a shock wave is a common phenomenon that occurs frequently in basic science research and in a variety of applications. In this work, shock-tube experiments on the developments of two-dimensional tri-mode interfaces accelerated by a convergent shock wave are performed. Eight sets of different combinations in the value of phase and that of amplitude in a tri-mode perturbed interface are studied to evaluate the effect of mode coupling on the amplitude growths of the basic modes. The qualitative results show that the phase combination obviously affects the interface morphologies and flow features. The alternation of each mode amplitude does not affect the major flow features, such as the number and arrangement of the bubbles and spikes, but affects the local interface features. Depending upon the phase combination, the mode amplitude growth is either promoted or suppressed by mode coupling relative to the single-mode counterpart. By considering the feedbacks from both the first-order and second-order mode couplings, the mode amplitude growth can be qualitatively predicted. Relative to dual-mode interface, mode coupling occurs earlier in tri-mode interface. For the sets of parameters we studied, the effect of initial phase on the amplitude growth is greater and occurs earlier for the mode with low mode number. In addition, the amplitude development of mode with high mode number is more affected by initial amplitudes of basic modes than that of mode with low mode number. The introduction of the third mode affects the amplitude growths of original two modes, but has little effect on the final mixing width growth. Finally, a theoretical model is proposed to predict the amplitude growth of each basic mode.
关键词	convergent shock wave tri-mode interface mode-coupling
DOI	10.1007/s11433-024-2471-7
收录类别	SCI ; EI ; CSCD
语种	英语
WOS记录号	WOS:001324194200001
关键词[WOS]	RAYLEIGH-TAYLOR ; SINGLE-MODE ; HYDRODYNAMIC INSTABILITIES ; GROWTH ; SHOCK ; STABILITY ; VELOCITY ; DRIVEN ; LAYER
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
资助项目	National Natural Science Foundation of China[12372281] ; National Natural Science Foundation of China[12388101] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB0620201] ; Youth Innovation Promotion Association CAS
项目资助者	National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS
论文分区	一类
力学所作者排名	3
RpAuthor	Zhai, Zhigang
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/96851
专题	高温气体动力学国家重点实验室
作者单位	1.Univ Sci & Technol China, Dept Modern Mech, Adv Prop Lab, Hefei 230026, Peoples R China; 2.Chinese Acad Sci, State Key Lab High Temp Gas Dynam, Inst Mech, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhai, Zhigang,Xu, Jinru,Luo XS. Convergent Richtmyer-Meshkov instability on two-dimensional tri-mode interfaces[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2024,67,12,:14.Rp_Au:Zhai, Zhigang
APA	Zhai, Zhigang,Xu, Jinru,&罗喜胜.(2024).Convergent Richtmyer-Meshkov instability on two-dimensional tri-mode interfaces.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,67(12),14.
MLA	Zhai, Zhigang,et al."Convergent Richtmyer-Meshkov instability on two-dimensional tri-mode interfaces".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 67.12(2024):14.