Numerical study of electrohydrodynamic atomization considering liquid wetting and corona discharge effects
Article
Mai, Luan Ngoc, Vu, Trung-Hieu, Dinh, Thien Xuan, Vu, Hoai Duc, Tran, Canh-Dung, Dau, Van Thanh and Ngo, Hieu Khanh. 2023. "Numerical study of electrohydrodynamic atomization considering liquid wetting and corona discharge effects." Physics of Fluids. 35 (6). https://doi.org/10.1063/5.0151085
Article Title | Numerical study of electrohydrodynamic atomization considering liquid wetting and corona discharge effects |
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ERA Journal ID | 1298 |
Article Category | Article |
Authors | Mai, Luan Ngoc, Vu, Trung-Hieu, Dinh, Thien Xuan, Vu, Hoai Duc, Tran, Canh-Dung, Dau, Van Thanh and Ngo, Hieu Khanh |
Journal Title | Physics of Fluids |
Journal Citation | 35 (6) |
Article Number | 062014 |
Number of Pages | 15 |
Year | 2023 |
Publisher | AIP Publishing |
Place of Publication | United States |
ISSN | 1070-6631 |
1089-7666 | |
Digital Object Identifier (DOI) | https://doi.org/10.1063/5.0151085 |
Web Address (URL) | https://pubs.aip.org/aip/pof/article/35/6/062014/2900239 |
Abstract | In this paper, the behavior of the cone-jet mode of fluid by electrohydrodynamic atomization (electrospray) is numerically simulated and investigated with the effect of liquid wetting and corona discharge effects. The simulation was performed with contact angle condition to fit the Taylor cone shape by experiments. Experimental data are provided to verify and validate the numerical method, followed by additional analyses on the effects of electrical conductivity, surface tension, flow rate, and fluid viscosity on the electrospray characteristics, including spray current and jet diameter. Numerical results by simulations are in reasonable agreement with experiments and consistent with the literature. Analyses on different contact angles suggest potentially major impacts of this factor on the cone-jet mode in high voltage and low flow rate circumstances. Furthermore, the influence of corona discharge on electrospray is also investigated by both electrospray–corona simulation and experiment using a high-speed camera, yielding a significant improvement in the numerical prediction for Taylor cone formation. Numerical results indicate that liquid wetting on capillary nozzles would be a vital factor for the Taylor cone formation in numerical electrospray–corona discharge studies. |
Keywords | Electrospray; Electrical conductivity; Corona discharge ionization source; Electrostatics |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 490399. Numerical and computational mathematics not elsewhere classified |
401799. Mechanical engineering not elsewhere classified | |
Byline Affiliations | Griffith University |
School of Engineering | |
Centre for Future Materials | |
Institute for Advanced Engineering and Space Sciences |
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https://research.usq.edu.au/item/z264y/numerical-study-of-electrohydrodynamic-atomization-considering-liquid-wetting-and-corona-discharge-effects
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