Dynamic characteristics of charged droplets in an electrostatic spraying process with twin capillaries

doi:10.1016/j.cjche.2018.03.006

Chin.J.Chem.Eng. ›› 2018, Vol. 26 ›› Issue (12): 2403-2411.DOI: 10.1016/j.cjche.2018.03.006

• Fluid Dynamics and Transport Phenomena • Previous Articles Next Articles

Dynamic characteristics of charged droplets in an electrostatic spraying process with twin capillaries

Jun Zhang¹, Hongzhou He¹, Guanxing Huang²

1 Cleaning Combustion and Energy Utilization Research Center of Fujian Province, School of Mechanical Engineering, Jimei University, Xiamen 361021, China;
2 Engineering training Centre, Jimei University, Xiamen 361021, China

Received:2017-10-24 Revised:2018-03-22 Online:2019-01-09 Published:2018-12-28
Contact: Jun Zhang
Supported by:
Supported by the Science and Technology Project of Fujian Province (2017H0024) and the Fujian Provincial Department of Education research project (JK2012027), China.

Dynamic characteristics of charged droplets in an electrostatic spraying process with twin capillaries

Jun Zhang¹, Hongzhou He¹, Guanxing Huang²

1 Cleaning Combustion and Energy Utilization Research Center of Fujian Province, School of Mechanical Engineering, Jimei University, Xiamen 361021, China;
2 Engineering training Centre, Jimei University, Xiamen 361021, China

通讯作者: Jun Zhang
基金资助:
Supported by the Science and Technology Project of Fujian Province (2017H0024) and the Fujian Provincial Department of Education research project (JK2012027), China.

Abstract

Abstract: The experimental and simulated investigations on electrostatic spraying with twin capillaries are carried out. The starting electric voltage required for the cone-jet and the deposition characteristics of the droplets are measured. The whole spraying process, which includes jet and droplet motions, is simulated and the simulated results on the motions of jet and droplet are basically consistent with the experiments. According to the simulated results, the contributions of various electric forces to droplet movement are quantitatively analyzed and the droplet dynamic characteristics, especially the interaction mechanism between two sprays, are revealed. The test results on the droplet deposition characteristics partially support the simulated results on the droplet motion. The present work is useful for a better understanding on the interaction between sprays in double or multi-capillary system.

Key words: Electrostatic spray, Twin capillaries, Simulation, Interaction

摘要： The experimental and simulated investigations on electrostatic spraying with twin capillaries are carried out. The starting electric voltage required for the cone-jet and the deposition characteristics of the droplets are measured. The whole spraying process, which includes jet and droplet motions, is simulated and the simulated results on the motions of jet and droplet are basically consistent with the experiments. According to the simulated results, the contributions of various electric forces to droplet movement are quantitatively analyzed and the droplet dynamic characteristics, especially the interaction mechanism between two sprays, are revealed. The test results on the droplet deposition characteristics partially support the simulated results on the droplet motion. The present work is useful for a better understanding on the interaction between sprays in double or multi-capillary system.

关键词: Electrostatic spray, Twin capillaries, Simulation, Interaction

Jun Zhang, Hongzhou He, Guanxing Huang. Dynamic characteristics of charged droplets in an electrostatic spraying process with twin capillaries[J]. Chin.J.Chem.Eng., 2018, 26(12): 2403-2411.

Jun Zhang, Hongzhou He, Guanxing Huang. Dynamic characteristics of charged droplets in an electrostatic spraying process with twin capillaries[J]. Chinese Journal of Chemical Engineering, 2018, 26(12): 2403-2411.

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Dynamic characteristics of charged droplets in an electrostatic spraying process with twin capillaries

Dynamic characteristics of charged droplets in an electrostatic spraying process with twin capillaries

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