排灌机械工程学报
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排灌机械工程学报  2019, Vol. 37 Issue (2): 142-147    DOI: 10.3969/j.issn.1674-8530.18.0008
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Experimental investigation of crossflow characteristics in a multijets system at small nozzletoplate spacing
ZHU Keqian, SUN Tao, YU Pingping, LI Meixiang, YUAN Ningyi, DING Jianning
1. Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Jiangsu Key Laboratory of Green Process Equipment, Changzhou High Technology Research Key Laboratory of Mould Advanced Manufacturing, School of Mechanical Engineering, Changzhou University, Changzhou,Jiangsu 213164, China; 2. Micro/Nano Science and Technology Center, School of Mechanical Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China
Experimental investigation of crossflow characteristics in a multijets system at small nozzletoplate spacing
ZHU Keqian, SUN Tao, YU Pingping, LI Meixiang, YUAN Ningyi, DING Jianning
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摘要  To further extend knowledge about the detailed knowledge on the crossflow characteristic in a multijets system under a confined space, particle image velocimetry (PIV) was employed to investigate the flow structures together with the distributions of the mean velocity components for Reynolds numbers (Re) ranging from 6 213 to 13 418, nozzletoplate spacing (H/D) varying from 0.20 to 125, respectively. Results show that the crossflow configuration is significantly different from those of large nozzletoplate spacing. In addition, a turning point H/D = 0.50 is revealed in the profile of the normalized maximum radial velocity which is associated with the heat transfer distribution on the impingement plate.
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ZHU Keqian
SUN Tao
YU Pingping
LI Meixiang
YUAN Ningyi
DING Jianning
关键词crossflow   multiple impinging jets   small nozzletoplate spacing   Reynolds numbers   particle image velocimetry     
Abstract
Key words:   
收稿日期: 2018-01-09;
基金资助: National Natural Science Foundation of China (51335002)
引用本文:   
ZHU Keqian,SUN Tao,YU Pingping等. Experimental investigation of crossflow characteristics in a multijets system at small nozzletoplate spacing[J]. 排灌机械工程学报, 2019, 37(2): 142-147.
ZHU Keqian,SUN Tao,YU Pingping et al. Experimental investigation of crossflow characteristics in a multijets system at small nozzletoplate spacing[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(2): 142-147.
 
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