| Spatial pyramidal cross correlation for particle image velocimetry |
| Wang HP; Wu P; Gao Q; Wang JJ; Wang JJ
|
| 2018-06-01
|
| 发表期刊 | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 卷号 | 61期号:6页码:867-878 |
| ISSN | 1674-7321
|
| 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. |
| 关键词 | Particle Image Velocimetry (Piv)
Cross Correlation
Spatial Resolution
Moving Average
|
| DOI | 10.1007/s11431-017-9191-3
|
| 收录类别 | SCI
; EI
|
| 语种 | 英语
|
| WOS记录号 | WOS:000434806700007
|
| 关键词[WOS] | SPACE-TIME CORRELATIONS
; TURBULENT SHEAR FLOWS
; DEFORMATION METHODS
; PIV
; RESOLUTION
; INTERROGATION
; ACCURACY
|
| WOS研究方向 | Engineering
; Materials Science
|
| WOS类目 | Engineering, Multidisciplinary
; Materials Science, Multidisciplinary
|
| 项目资助者 | 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)
|
| 论文分区 | 二类
|
| 力学所作者排名 | 1
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/77514
|
| 专题 | 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.
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