Richtmyer-Meshkov instability of a single-mode heavy-light interface in cylindrical geometry

doi:10.1063/5.0167248

	Richtmyer-Meshkov instability of a single-mode heavy-light interface in cylindrical geometry
	Li, Jiaxuan; Wang, He; Zhai, Zhigang; Luo XS(罗喜胜)
通讯作者	Zhai, Zhigang(sanjing@ustc.edu.cn)
发表期刊	PHYSICS OF FLUIDS
	2023-10-01
卷号	35 期号:10 页码:10
ISSN	1070-6631
摘要	Richtmyer-Meshkov (RM) instability of a single-mode SF6-air interface subjected to a convergent shock is investigated experimentally. The convergent shock tube is specially designed with an opening tail to weaken the Rayleigh-Taylor effect and eliminate the reflected waves' effect. The gas layer scheme is used to create a heavy gas environment at the upstream side of the interface. Before phase inversion is finished, the amplitude reduction is accelerated, but the Bell-Plesset (BP) effect in this process is found to be negligible. After phase inversion is completed, the linear growth rate is generally predicted due to small amplitude and the weak BP effect. In nonlinear regime, an existing nonlinear model is revised based on the Pade approximation to give a better prediction of amplitude growth. The spike amplitude grows almost linearly, whereas the bubble amplitude gradually saturates and even reduces. For a heavy-light interface in convergent geometry, although both the spike and bubble amplitude growths are promoted by the BP effect, the spike growth is more promoted than the bubble. The BP effect enhances generation of the second-order harmonic, which results in saturation and reduction of the bubble amplitude. The discrepancy in the BP effect between light-heavy and heavy-light interfaces is qualitatively demonstrated for the first time.
DOI	10.1063/5.0167248
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001104461900005
关键词[WOS]	STABILITY ; TAYLOR ; GROWTH ; LAYER
WOS研究方向	Mechanics ; Physics
WOS类目	Mechanics ; Physics, Fluids & Plasmas
资助项目	This work was supported by the National Natural Science Foundation of China (Nos. 12372281, 12022201, 91952205, and 12102425) and Youth Innovation Promotion Association CAS.[12372281] ; This work was supported by the National Natural Science Foundation of China (Nos. 12372281, 12022201, 91952205, and 12102425) and Youth Innovation Promotion Association CAS.[12022201] ; This work was supported by the National Natural Science Foundation of China (Nos. 12372281, 12022201, 91952205, and 12102425) and Youth Innovation Promotion Association CAS.[91952205] ; This work was supported by the National Natural Science Foundation of China (Nos. 12372281, 12022201, 91952205, and 12102425) and Youth Innovation Promotion Association CAS.[12102425] ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
项目资助者	This work was supported by the National Natural Science Foundation of China (Nos. 12372281, 12022201, 91952205, and 12102425) and Youth Innovation Promotion Association CAS. ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS
论文分区	一类/力学重要期刊
力学所作者排名	3+
RpAuthor	Zhai, Zhigang
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/93564
专题	高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Li, Jiaxuan,Wang, He,Zhai, Zhigang,et al. Richtmyer-Meshkov instability of a single-mode heavy-light interface in cylindrical geometry[J]. PHYSICS OF FLUIDS,2023,35,10,:10.
APA	Li, Jiaxuan,Wang, He,Zhai, Zhigang,&罗喜胜.(2023).Richtmyer-Meshkov instability of a single-mode heavy-light interface in cylindrical geometry.PHYSICS OF FLUIDS,35(10),10.
MLA	Li, Jiaxuan,et al."Richtmyer-Meshkov instability of a single-mode heavy-light interface in cylindrical geometry".PHYSICS OF FLUIDS 35.10(2023):10.

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