多毛细管静电雾化模式实验研究

王贞涛; 夏磊; 张永辉; 钱怡松; 顾利定; 邱乾胜

doi:10.3969/j.issn.2096-1553.2018.01.012

January 2018

Article Contents

WANG Zhentao, XIA Lei, ZHANG Yonghui, et al. Experimental study on electro-spraying modes from multi-capillary[J]. Journal of Light Industry, 2018, 33(1): 96-103. doi: 10.3969/j.issn.2096-1553.2018.01.012

Citation: WANG Zhentao, XIA Lei, ZHANG Yonghui, et al. Experimental study on electro-spraying modes from multi-capillary[J]. Journal of Light Industry, 2018, 33(1): 96-103. doi: 10.3969/j.issn.2096-1553.2018.01.012 shu

Experimental study on electro-spraying modes from multi-capillary

Postdoctoral Scientific Research Workstation, Jiehua Holdings Co., Ltd., Haining 314419, China;
School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China

Received Date: 2016-11-25
Accepted Date: 2017-08-30

Abstract

High speed digital camera was used to record eletrohydrodynamics spraying modes of multi-capillary with ethanol. The spraying modes of multi-capillary were obtained by analyzing the pictures, and the effect of operating parameters on electro-spraying modes was discussed. The spraying modes with two configurations were classified by the dimensionless parameter flow (α) and electric Bond number (β). The experimental results indicated that similar to spraying mode of mono-capillary,dripping, spindle, jet and multi-jet modes could be observed in spraying mode of multi-capillary. The modes could transits from one mode to another with varying applied voltage and flow rate. The two jets from double-capillary showed symmetrical skewed distribution due to Coulomb repulsive forces between them. Although there are different configurations for two kinds of capillaries, the spindle and pulsated jet modes could be observed. For these two modes, the frequency of spindle and pulsated jet ejected from the capillary would also increased and the swing range of the spindle and jet would reduce with an increase in electric Bond number. The transition from spindle to pulsated jet mode would be observed at a critical electric Bond number. With electric Bond number further increased, the multi-jet mode would be observed for two configurations. The number of jet increased with an increase in electrical Bond number.
- multi-capillary,
- electro-spraying mode,
- non-dimensional flow α,
- electric Bond number β
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Experimental study on electro-spraying modes from multi-capillary

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