Experimental investigation of crossflow characteristics in a multijets system at small nozzletoplate 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 multijets system at small nozzletoplate spacing
ZHU Keqian, SUN Tao, YU Pingping, LI Meixiang, YUAN Ningyi, DING Jianning
摘要 To further extend knowledge about the detailed knowledge on the crossflow characteristic in a multijets 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, nozzletoplate spacing (H/D) varying from 0.20 to 125, respectively. Results show that the crossflow configuration is significantly different from those of large nozzletoplate 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.
基金资助: National Natural Science Foundation of China (51335002)
引用本文:
ZHU Keqian, SUN Tao, YU Pingping, LI Meixiang, YUAN Ningyi, DING Jianning. Experimental investigation of crossflow characteristics in a multijets system at small nozzletoplate spacing[J]. 排灌机械工程学报, 2019, 37(2): 142-147.
ZHU Keqian, SUN Tao, YU Pingping, LI Meixiang, YUAN Ningyi, DING Jianning. Experimental investigation of crossflow characteristics in a multijets system at small nozzletoplate spacing. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(2): 142-147.