A water film motor
R. Shirsavar, A. Amjadi, N. Hamedani Radja, M. D. Niry, M. Reza Rahimi, Tabar, M.R. Ejtehadi
TL;DR
This paper introduces a water film motor that induces rotation through electrolysis and electric fields, functioning across various scales, and demonstrating threshold-dependent rotational behavior.
Contribution
It presents a novel water film motor mechanism utilizing electrolysis and electric fields, expanding potential applications in microfluidics and soft robotics.
Findings
Water films can be made to rotate electrically.
Rotation depends on surpassing threshold electric or electrolysis current.
The device operates effectively at multiple length scales.
Abstract
We report on electrically-induced rotations in water films, which can function at many length scales. The device consists of a two-dimensional cell used for electrolysis of water films, as simple as an insulator frame with two electrodes on the sides, to which an external in-plane electric field perpendicular to the mean electrolysis current density is applied. If either the external field or the electrolysis current exceeds some threshold (while the other one is not zero), the liquid film begins to rotate.
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Taxonomy
TopicsElectrohydrodynamics and Fluid Dynamics · Power Transformer Diagnostics and Insulation · Characterization and Applications of Magnetic Nanoparticles