Periodic flow patterns of the magnetic fluid in microchannel
Resource
Journal of Magnetism and Magnetic Materials 310: 2844-2846
Journal
Journal of Magnetism and Magnetic Materials
Journal Volume
310
Journal Issue
2 SUPPL. PART 3
Pages
2844-2846
Date Issued
2007
Author(s)
Abstract
In this study, of interests are the periodic flow patterns of the oil-based magnetic fluid in microchannels. A microfluidic chip is made of poly-dimethylsiloxane (PDMS) and contains cross-shape microchannels. The microchannels are 1000 μm in width and 200 μm in depth. A syringe pump was used to drive the fluids. Periodic flow patterns were seen and the slugs of magnetic fluid and DI water were generated. The operating factors discussed in the present work are the flow rates and the magnetic field. The frequency of generation of the slugs increases with increase in the flow rates. Besides, by settling the permanent magnet around the microchannel, the periods of the slug generation are changed. Different positions of the magnet lead to different periods for generating the slugs. By adjusting operating conditions, to control the frequency and the volume of the slugs is practical. © 2006 Elsevier B.V. All rights reserved.
SDGs
Type
journal article