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

doi:10.1063/5.0167248

CORC > 力学研究所 > 中国科学院力学研究所 > 高温气体动力学国家重点实验室

	Richtmyer-Meshkov instability of a single-mode heavy-light interface in cylindrical geometry
	Li, Jiaxuan 2; Wang, He 2; Zhai, Zhigang 2; Luo, Xisheng 1,2
刊名	PHYSICS OF FLUIDS
	2023-10-01
卷号	35 期号:10 页码:10
ISSN号	1070-6631
DOI	10.1063/5.0167248
通讯作者	Zhai, Zhigang(sanjing@ustc.edu.cn)
英文摘要	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.
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
WOS关键词	STABILITY ; TAYLOR ; GROWTH ; LAYER
WOS研究方向	Mechanics ; Physics
语种	英语
WOS记录号	WOS:001104461900005
资助机构	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
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93563]
专题	力学研究所_高温气体动力学国家重点实验室
通讯作者	Zhai, Zhigang
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China 2.Univ Sci & Technol China, Dept Modern Mech, Adv Prop Lab, Hefei 230026, Peoples R China
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,&Luo, Xisheng.(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.