Spatial pyramidal cross correlation for particle image velocimetry

doi:10.1007/s11431-017-9191-3

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Spatial pyramidal cross correlation for particle image velocimetry
	Wang HP; Wu P; Gao Q; Wang JJ; Wang JJ
刊名	SCIENCE CHINA-TECHNOLOGICAL SCIENCES
	2018-06-01
卷号	61 期号:6 页码:867-878
关键词	Particle Image Velocimetry (Piv) Cross Correlation Spatial Resolution Moving Average
ISSN号	1674-7321
DOI	10.1007/s11431-017-9191-3
文献子类	Article
英文摘要	A spatial pyramidal cross-correlation based on interrogation area sub-division is introduced to improve the measurement resolution in particle image velocimetry (PIV). The high-resolution velocity can be achieved with a velocity prediction model via coarse cross-correlation. The prediction formula is deduced from the frequency response of the moving average (MA). The performance of this method was assessed using synthetically generated images of sinusoidal shear flow, two-dimensional vortical cellular flow, and homogeneous turbulence. A real PIV experiment of turbulent boundary layer was used to evaluate the new method. The results indicate that the spatial pyramid cross-correlation can robustly increase the spatial resolution.
分类号	二类
WOS关键词	SPACE-TIME CORRELATIONS ; TURBULENT SHEAR FLOWS ; DEFORMATION METHODS ; PIV ; RESOLUTION ; INTERROGATION ; ACCURACY
WOS研究方向	Engineering ; Materials Science
语种	英语
WOS记录号	WOS:000434806700007
资助机构	National Natural Science Foundation of China(11702302 ; Fundamental Research Funds for Central Universities(YWF-16-JCTD-A-05) ; Natural Science Foundation of Jiangsu Province(BK20140344) ; 51406127 ; 11572331)
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/77514]
专题	力学研究所_非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Wang HP,Wu P,Gao Q,et al. Spatial pyramidal cross correlation for particle image velocimetry[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2018,61(6):867-878.
APA	Wang HP,Wu P,Gao Q,Wang JJ,&Wang JJ.(2018).Spatial pyramidal cross correlation for particle image velocimetry.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,61(6),867-878.
MLA	Wang HP,et al."Spatial pyramidal cross correlation for particle image velocimetry".SCIENCE CHINA-TECHNOLOGICAL SCIENCES 61.6(2018):867-878.