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Electrohydrodynamic Drop Formation Processes of a Needle-Centered Nozzle Electrode  

Moon, Jae-Duk (경북대 전자전기컴퓨터학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.57, no.10, 2008 , pp. 1807-1811 More about this Journal
Abstract
In this paper, the meniscus formation/deformation processes and conduction characteristics of the needle-centered ceramic nozzle electrode as an effective electrohydrodynamic (EHD) flow driving mechanisms for de-ionized water and silicone oil have been investigated. Results showed that the applied high voltage affected significantly on the processes, such as the drop formation mode, the deformation mode, the dripping mode, the jet mode, and the atomization mode. There was the EHD atomization mode for the de-ionized water while it was not occurred for the silicone oil, which, however, might be due to the lower electric conductivity and dielectric property of the oil than that of the water.
Keywords
Electrohydrodynamic; Needle-centered nozzle; Drop formation/deformation; Atomization;
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