Publications by authors named "Peter M Tzelios"
Article Synopsis
- Researchers developed a method using periodic magnetic fields to control the movement of ferromagnetic spheres on solid surfaces, allowing them to migrate uphill or downhill along gradients.
- The study employs a dynamic model that analyzes magnetic forces and fluid dynamics at low Reynolds numbers, combining analytical and numerical approaches to optimize particle movement.
- Experiments confirmed the ability of these magnetic fields to facilitate coordinated movement of multiple particles in different directions, which has implications for advancing design in colloidal robotics.
Spatially uniform magnetic fields induce nonzero forces on magnetic particles adsorbed at curved liquid interfaces thereby driving their motion. Such motions, prohibited in bulk fluids, arise due to interfacial constraints that couple magnetic torques to capillary forces at curved interfaces. Here, we show that time-varying (spatially uniform) magnetic fields can be used to drive a variety of steady particle motions on water drops in decane.
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