| Spatial pyramidal cross correlation for particle image velocimetry | |
| Wang HP; Wu P; Gao Q; Wang JJ; Wang JJ | |
| Source Publication | SCIENCE CHINA-TECHNOLOGICAL SCIENCES
 |
| 2018-06-01 | |
| Volume | 61Issue:6Pages:867-878 |
| ISSN | 1674-7321 |
| Abstract | 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. |
| Keyword | Particle Image Velocimetry (Piv) Cross Correlation Spatial Resolution Moving Average |
| DOI | 10.1007/s11431-017-9191-3 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000434806700007 |
| WOS Keyword | SPACE-TIME CORRELATIONS ; TURBULENT SHEAR FLOWS ; DEFORMATION METHODS ; PIV ; RESOLUTION ; INTERROGATION ; ACCURACY |
| WOS Research Area | Engineering ; Materials Science |
| WOS Subject | Engineering, Multidisciplinary ; Materials Science, Multidisciplinary |
| Funding Organization | 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) |
| Classification | 二类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/77514 |
| Collection | 非线性力学国家重点实验室 |
| Recommended Citation 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. |
| Files in This Item: | Download All | |||||
| File Name/Size | DocType | Version | Access | License | ||
| IrJ2018043.pdf（3036KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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