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A liquid film motor

Amjadi, A ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1007/s10404-008-0349-6
  3. Publisher: 2009
  4. Abstract:
  5. It is well known that electro-hydrodynamical effects in freely suspended liquid films can force liquids to flow. Here, we report a purely electrically driven rotation in water and some other liquid suspended films with full control on the velocity and the chirality of the rotating vortices. The device, which is called "film motor", consists of a quasi two-dimensional electrolysis cell in an external in-plane electric field, crossing the mean electrolysis current density. If either the external field or the electrolysis voltage exceeds some threshold (while the other does not vanish), the liquid film begins to rotate. The device works perfectly with both DC and AC fields. © Springer-Verlag 2008
  6. Keywords:
  7. Electro-hydrodynamics ; Liquid film ; Dc and ac fields ; Electrolysis cells ; Electrolysis currents ; External fields ; Full controls ; Hydrodynamical effects ; In-plane electric fields ; Rotating vortices ; Suspended films ; Two-dimensional ; Vortex ; Electric fields ; Electrochemistry ; Electrohydrodynamics ; Electrolytic cells ; Fluid dynamics ; Liquid films ; Motors ; Rotation ; Stereochemistry ; Thin films ; Vortex flow ; Electrolysis
  8. Source: Microfluidics and Nanofluidics ; Volume 6, Issue 5 , 2009 , Pages 711-715 ; 16134982 (ISSN)
  9. URL: https://link.springer.com/article/10.1007%2Fs10404-008-0349-6