Effect of internal bubbly flow on pipe vibrations

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	Effect of internal bubbly flow on pipe vibrations
	Zhang MingMing; Xu JianZhong
刊名	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
	2010-02-01
卷号	53 期号:2 页码:423-428
关键词	pipe vibration bubbly flow acoustic resonance normal mode decay rate
英文摘要	This paper presents an experimental investigation on wall vibrations of a pipe due to injection of a uniform bubble cloud into the pipe flow. For different bubble void fractions and averaged bubble sizes, the vibrations were measured using accelerometers. To understand the underlying physics, the evolution of the vibration spectra along the streamwise direction was examined. Results showed that wall vibrations were greatly enhanced up to 25 dB, compared with no bubble case. The characteristics of the vibration were mainly dependent on void fraction. These vibrations were believed to be caused by two mechanisms: acoustic resonance and normal modes of the bubble cloud. The former, originating from the interaction between the first mode of the bubble cloud and the first acoustic mode of the pipe, persisted along the entire pipe to enhance the vibration over a broad band frequency range, while the later, due to the process of bubble formation, successively decayed in the streamwise direction.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
研究领域[WOS]	Engineering ; Materials Science
关键词[WOS]	2-PHASE CROSS-FLOW ; TUBE ; SCATTERING ; CLOUDS ; DRAG
收录类别	SCI
语种	英语
WOS记录号	WOS:000276807200019
公开日期	2015-12-22
内容类型	期刊论文
源URL	[http://ir.etp.ac.cn/handle/311046/106489]
专题	工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI）
作者单位	Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhang MingMing,Xu JianZhong. Effect of internal bubbly flow on pipe vibrations[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2010,53(2):423-428.
APA	Zhang MingMing,&Xu JianZhong.(2010).Effect of internal bubbly flow on pipe vibrations.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,53(2),423-428.
MLA	Zhang MingMing,et al."Effect of internal bubbly flow on pipe vibrations".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 53.2(2010):423-428.