Oil-water two-phase flow-induced vibration of a cylindrical cyclone with vortex finder

doi:10.1063/5.0140066

IMECH-IR > 流固耦合系统力学重点实验室

	Oil-water two-phase flow-induced vibration of a cylindrical cyclone with vortex finder
	Chen, Hu ; Liu S(刘硕); Zhang J(张健); Xu JY(许晶禹)
发表期刊	PHYSICS OF FLUIDS
	2023-04
卷号	35 期号:4 页码:43317
ISSN	1070-6631
摘要	Cylindrical cyclones play an important role in oil-water separation and sewage treatment in the petroleum industry. Here, we describe the characteristics of vibration induced by a two-phase rotational flow in a cylindrical cyclone. The cyclone operating parameters together with a dimensional analysis and multiphase flow numerical simulation were used to understand the flow field characteristics. The frequency and amplitude of pressure fluctuation were obtained by measuring pressure changes at points on the axis of the device. It shows that the pressure in a cylindrical cyclone varies periodically during separation and that fluctuation frequency and amplitude are related to the inlet velocity and flow split ratio. The effect of the overflow split ratio on the pressure fluctuation frequency is negligible, but increasing the overflow split ratio will cause greater fluctuation of the flow. For a cylindrical cyclone, the pressure fluctuation frequency can be calculated from the inlet velocity. Adjusting the inlet velocity and the overflow split ratio changes the mechanical response of the structure. The results of a modal analysis show that the structural vibration response is consistent with the response state of the lowest point of the internal central-vortex pressure and that both are in approximate circular motion. Furthermore, the frequency of pressure fluctuation induced by the flow is close to the intrinsic frequency of the structure with a single bottom constraint, which can cause unwanted resonance easily. Therefore, an appropriately added constraint on a cylindrical cyclone should be taken into consideration to avoid the resonance frequency.
DOI	10.1063/5.0140066
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000964992400022
项目资助者	National Natural Science Foundation of China [11972039, 51509235]
论文分区	一类/力学重要期刊
力学所作者排名	1
RpAuthor	Zhang, J
引用统计	被引频次：5[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/311007/92262
专题	流固耦合系统力学重点实验室
作者单位	1.(Chen Hu, Liu Shuo, Zhang Jian, Xu Jing-Yu) Univ Chinese Acad Sci Sch Engn Sci Beijing 100049 Peoples R China 2.(Chen Hu, Liu Shuo, Zhang Jian, Xu Jing-Yu) Chinese Acad Sci Inst Mech Beijing 100190 Peoples R China
推荐引用方式 GB/T 7714	Chen, Hu,Liu S,Zhang J,et al. Oil-water two-phase flow-induced vibration of a cylindrical cyclone with vortex finder[J]. PHYSICS OF FLUIDS,2023,35,4,:43317.
APA	Chen, Hu,刘硕,张健,&许晶禹.(2023).Oil-water two-phase flow-induced vibration of a cylindrical cyclone with vortex finder.PHYSICS OF FLUIDS,35(4),43317.
MLA	Chen, Hu,et al."Oil-water two-phase flow-induced vibration of a cylindrical cyclone with vortex finder".PHYSICS OF FLUIDS 35.4(2023):43317.

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