Numerical investigation of conduction pumping of dielectric liquid film using flush-mounted electrodes |
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Authors: | Reza Gharraei Esmaeil Esmaeilzadeh Mohammad Reza Heirani Nobari |
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Institution: | 1. Mechanical Engineering Department, Azarbaijan Shahid Madani University, Tabriz, Iran 2. Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran 3. Mechanical Engineering Department, Amirkabir University of Technology, Tehran, Iran
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Abstract: | Electrohydrodynamic conduction pumping of dielectric liquid films using flush-mounted electrodes is investigated numerically. Two major factors consisting of the ion mobility difference and electrodes’ configuration can affect the conduction pumps. The relative importance of these factors on the hydrodynamic behavior has been studied at different configurations of flush-mounted electrodes for conduction pumping of various dielectric liquids with different electrical properties. Furthermore, the effect of heterocharge layer structure on the hydrodynamic behavior of conduction pump has been studied. The electrical behavior and flow patterns of dielectric liquids with real measured mobilities are compared with the experimental results, and new features of conduction pumping are found. The numerical results indicate that in the various operating conditions, the flow direction is dictated by the dominant factor. |
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