SIMPLE METHOD FOR MICRO FLOW GENERATION USING MAGNETIC FLUID AND SMALL CUBIC PERMANENT MAGNET

Abstract

This paper proposes a simple method to generate some water micro flows. The method is a wireless energy supply system composed of a magnetic fluid and a cubic permanent magnet. The magnet—magnetic fluid element was submerged in the water. Immiscible magnetic fluid was adsorbed on the small permanent magnet in water. The system was driven by the external alternating magnetic field created by the coil. The interface of magnetic fluid responded to the alternating magnetic field with harmonic oscillation. The interfacial oscillation of magnetic fluid generated micro water flows. The generation of micro water flows was confirmed by visualization technique. The details of micro water flow and magnetic fluid interface response to the alternating magnetic field were revealed experimentally.