科研之友
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摘要
The role of the applied voltage and liquid physical properties in the stable cone jet formation has been investigated in this paper. A higher pulse voltage of large duty cycles superimposed on a high bias voltage produced a stable cone jet under constant applied pressure. The critical voltage required for the formation of the stable cone jet decreased with an increase in the applied pressure for solutions having different conductivities. As compared to low viscous and high conductive solutions, high viscosity liquids with low conductivity were unable to form a stable cone jet easily at higher frequencies and low pulse time. The experimental results indicate that there is a strong relationship among these parameters, and a precise control of these parameters is required to achieve high quality electrohydrodynamic (EHD) jetting. Also five dimensionless parameters have been derived using the Buckingham H theorem, and their effect on EHD jetting has been analyzed thoroughly.
- 出版日期2014-4
