Simulation for VIV of high pressure drop labyrinth-sleeve combined regulating valves

doi:10.13465/j.cnki.jvs.2020.03.013

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	Simulation for VIV of high pressure drop labyrinth-sleeve combined regulating valves
	Li, Shuxun 1,2; Zhang, Wannian 1,2; Wang, Weibo 1,2; Xu, Xiaogang 1,2; Zhu, Lu 1,2
刊名	Zhendong yu Chongji/Journal of Vibration and Shock
	2020-02-15
卷号	39 期号:3 页码:95-103
关键词	Channel flow Drops Flow fields Flow velocity Frequency domain analysis Lift Modal analysis Pressure drop Time domain analysis Transition flow Vibrations (mechanical) Vortex flow Vortex shedding Characteristic curve High pressure Inner transient flow Labyrinth sleeve Locking phenomenon Maximum flow velocities Transient flow fields Vortex-induced vibration
ISSN号	10003835
DOI	10.13465/j.cnki.jvs.2020.03.013
英文摘要	Aiming at vortex-induced vibration (VIV) phenomena of high pressure drop type regulating valves, a high pressure drop regulating valve with combination of multi-channel labyrinth discs and multi-stage sleeves was designed. Based on CFD and the fluid-structure coupled modal analysis, inner transient flow field and structural modes of the valve were calculated to obtain its 3 typical open fluid flow cases, lift coefficient's time domain and frequency domain characteristic curves as well as modal frequencies and modal shapes. The results showed that at 4 s time instant, with decrease in the valve's opening, the maximum flow velocity of fluid decreases, and large vortex in outer flow channel of the fourth-stage sleeve gradually forms small one; fluctuation of fluid lift coefficient during the valve being fully open is more violent than those during the valve having 70% and 40% openings, the 1st and 2nd order modal frequencies of the valve increase with increase in valve opening; the valve's modal frequencies don't fall in range of vortex shedding main frequency, the valve can't have VIV locking phenomenon. © 2020, Editorial Office of Journal of Vibration and Shock. All right reserved.
语种	中文
出版者	Chinese Vibration Engineering Society
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115454]
专题	石油化工学院
作者单位	1.Machinery Industry Pump and Special Valve Engineering Research Center, Lanzhou; 730050, China 2.School of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Li, Shuxun,Zhang, Wannian,Wang, Weibo,et al. Simulation for VIV of high pressure drop labyrinth-sleeve combined regulating valves[J]. Zhendong yu Chongji/Journal of Vibration and Shock,2020,39(3):95-103.
APA	Li, Shuxun,Zhang, Wannian,Wang, Weibo,Xu, Xiaogang,&Zhu, Lu.(2020).Simulation for VIV of high pressure drop labyrinth-sleeve combined regulating valves.Zhendong yu Chongji/Journal of Vibration and Shock,39(3),95-103.
MLA	Li, Shuxun,et al."Simulation for VIV of high pressure drop labyrinth-sleeve combined regulating valves".Zhendong yu Chongji/Journal of Vibration and Shock 39.3(2020):95-103.