The field of microfluidics is developing with advances in MEMS (micro electro-mechanical system) and μ-TAS (micro total analysis system) technologies. In various devices, controlling the flow rate of liquid or gas accurately at micro or nanoliter volume levels is required. By using a ferrofluid, the flow of a liquid or gas in a microchannel can be controlled by the driving power exerted on the ferrofluid. In this study, an unsteady flow of a liquid slug caused by the driving force exerted by a ferrofluid has been investigated in a 200μm circular microchannel under the influence of an external magnetic field. The motion and behavior of the liquid slugs were observed. Thus, by visualizing the behavior and interface of the ferrofluid and the liquid slug, we could study the characteristics of fluid transport phenomena in the microchannel. The relationship between the movements of the liquid slug and the ferrofluid was investigated experimentally and analytically. The surface tension and kinematic viscosity of the liquid significantly affected the movement of the liquid slug. Therefore, the velocity of the ferrofluid is affected by the physical properties of the liquids pulled. Combinations of various liquids with a ferrofluid were examined in this study. The velocity of a short liquid slug was obtained and compared with the velocity of the ferrofluid. Also an apparent surface tension of the sample liquid was examined analytically.
Skip Nav Destination
ASME 3rd International Conference on Microchannels and Minichannels
June 13–15, 2005
Toronto, Ontario, Canada
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4185-5
PROCEEDINGS PAPER
A Study on the Response of a Liquid Slug Pulled by a Ferrofluid Under the Influence of a Magnetic Field in a Microchannel
Yuichi Shibata,
Yuichi Shibata
Ibaraki National College of Technology, Hitachinaka, Japan
Search for other works by this author on:
Koh Ikeda,
Koh Ikeda
Ibaraki National College of Technology, Hitachinaka, Japan
Search for other works by this author on:
Takeshi Oshikubo,
Takeshi Oshikubo
Ibaraki National College of Technology, Hitachinaka, Japan
Search for other works by this author on:
Masahiro Kawaji
Masahiro Kawaji
University of Toronto, Toronto, ON, Canada
Search for other works by this author on:
Yuichi Shibata
Ibaraki National College of Technology, Hitachinaka, Japan
Koh Ikeda
Ibaraki National College of Technology, Hitachinaka, Japan
Takeshi Oshikubo
Ibaraki National College of Technology, Hitachinaka, Japan
Masahiro Kawaji
University of Toronto, Toronto, ON, Canada
Paper No:
ICMM2005-75255, pp. 703-708; 6 pages
Published Online:
November 11, 2008
Citation
Shibata, Y, Ikeda, K, Oshikubo, T, & Kawaji, M. "A Study on the Response of a Liquid Slug Pulled by a Ferrofluid Under the Influence of a Magnetic Field in a Microchannel." Proceedings of the ASME 3rd International Conference on Microchannels and Minichannels. ASME 3rd International Conference on Microchannels and Minichannels, Parts A and B. Toronto, Ontario, Canada. June 13–15, 2005. pp. 703-708. ASME. https://doi.org/10.1115/ICMM2005-75255
Download citation file:
3
Views
0
Citations
Related Proceedings Papers
Related Articles
Ferrohydrodynamic Capillary Convection
J. Thermal Sci. Eng. Appl (April,2019)
Effect of Boundary Conditions on the Onset of Thermomagnetic Convection in a Ferrofluid Saturated Porous Medium
J. Heat Transfer (October,2009)
Onset of Thermogravitational Convection in a Ferrofluid Layer With Temperature Dependent Viscosity
J. Heat Transfer (January,2012)
Related Chapters
Antilock-Braking System Using Fuzzy Logic
International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3
Numerical Simulation for Nature Convection Heat Transfer of Liquid Metal Flow with Fusion Magnetic Fields
Inaugural US-EU-China Thermophysics Conference-Renewable Energy 2009 (UECTC 2009 Proceedings)
Dynamic Behavior of Pumping Systems
Pipeline Pumping and Compression Systems: A Practical Approach