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	Damages on steel surface at the incubation stage of the vibration cavitation erosion in water
	Chen Haosheng ; Li Jiang ; Chen Darong ; Wang Jiadao
	2010-05-10 ; 2010-05-10
关键词	vibration cavitation cavitation erosion erosion pit bubble collapse CFD COLLAPSE BUBBLE LIQUID Engineering, Mechanical Materials Science, Multidisciplinary
中文摘要	To investigate the damage mechanism of the cavitation erosion at the incubation stage, a. kind of polished 40Cr steel was used as the sample in the vibration cavitation erosion experiment. After 1-min experiment, three kinds of erosion pits were found on the sample surface, they are complete pits, incomplete pits and thermal pits in this paper. Numerical simulation of a bubble collapse process in Fluent environment explains the formations of the three kinds of erosion pits. The micro-jet with a strong radius flow around is the main reason for the complete pits and their step-like openings, the shock wave generated outside the jet function domain is the main reason for the incomplete pit, and the high temperature in the compressed bubble at the moment of collapse is considered as the reason for the formation of the thermal pits. (C) 2007 Elsevier B.V. All rights reserved.
语种	英语 ; 英语
出版者	ELSEVIER SCIENCE SA ; LAUSANNE ; PO BOX 564, 1001 LAUSANNE, SWITZERLAND
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/25003]
专题	清华大学
推荐引用方式 GB/T 7714	Chen Haosheng,Li Jiang,Chen Darong,et al. Damages on steel surface at the incubation stage of the vibration cavitation erosion in water[J],2010, 2010.
APA	Chen Haosheng,Li Jiang,Chen Darong,&Wang Jiadao.(2010).Damages on steel surface at the incubation stage of the vibration cavitation erosion in water..
MLA	Chen Haosheng,et al."Damages on steel surface at the incubation stage of the vibration cavitation erosion in water".(2010).

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