Horizontal bridges in polar dielectric liquids
| Autor: | Elmar C. Fuchs, Karl Gatterer, Jakob Woisetschläger, Mathias Eisenhut, Gert Holler, Adam D. Wexler |
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| Rok vydání: | 2011 |
| Předmět: |
Fluid Flow and Transfer Processes
Materials science Mass flow media_common.quotation_subject Computational Mechanics General Physics and Astronomy Dielectric Mechanics Bridge (interpersonal) Asymmetry Ion Physics::Fluid Dynamics Mechanics of Materials Electrode Polar Electrohydrodynamics media_common |
| Zdroj: | Experiments in Fluids. 52:193-205 |
| ISSN: | 1432-1114 0723-4864 |
| Popis: | When a high-voltage direct-current is applied to two beakers filled with polar liquid dielectrica like water or methanol, a horizontal bridge forms between the two beakers. By repeating a version of Pellat’s experiment, it is shown that a horizontal bridge is stable by the action of electrohydrodynamic pressure. Thus, the static and dynamic properties of the phenomenon called a ‘floating water bridge’ can be explained by the gradient of Maxwell pressure, replenishing the liquid within the bridge against any drainage mechanism. It is also shown that a number of liquids can form stable and long horizontal bridges. The stability of such a connection, and the asymmetry in mass flow through such bridges caused by the formation of ion clouds in the vicinity of the electrodes, is also discussed by two further experiments. |
| Databáze: | OpenAIRE |
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