R&D: Behavior of “Non–Magnetic Liquid-Magnetic Fluid” Emulsions in Microchannels Under Influence of Inhomogeneous Magnetic Field

IEEE Transactions on Magnetics has published an article written by Evgeniy Sokolov, Darya Kalyuzhnaya, and Petr Ryapolov, Southwest State University, Kursk, Russia.

Abstract: “The paper presents the main results of a study of the behavior of magnetic emulsions based on a magnetic fluid. The formation of the emulsion occurred in a flat channel under the influence of an external magnetic field. The magnetic field has a focusing effect and helps control the size of the emulsion droplets and their dynamics. The source of the magnetic field is a combination of a solenoid, on top of which there is a ring-shaped permanent magnet. The magnetic field was determined both experimentally and using the FEMM 4.2 software package. The modeling of a water droplet in a magnetic fluid was conducted using the same program. The studies showed that manipulating non-magnetic inclusions in a magnetic medium can be easily achieved with the help of an external magnetic field.“