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Simulation of flow control in microchannels using ferrofluid plugs

DSpace at IIT Bombay

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Title Simulation of flow control in microchannels using ferrofluid plugs
 
Creator GUNDE, AC
MITRA, SK
 
Description Microfluidic devices have acquired an important position in the field of MEMS. While the usage of mechanical components for achieving electroosmosis and electrophoresis effects can prove to be impractical and costly, alternative methods for flow control have to be explored. This paper extends the concept of obtaining a superior flow control in microchannels by using ferrofluid plugs as barriers. These plugs occlude and discharge fluid flow, thereby functioning as valves and rendering the usage of mechanical components unnecessary. A numerical simulation of a ferrofluid plug blocking fluid flow in a microchannel due to the action of a magnetic field is carried out. The relationship between ferrofluid property and the capacity to block fluid flow is studied and analyzed Thus a new concept of flow control in a microfluidic device by the proper variation of the external magnetic field and positioning of the ferrofluid plugs has been introduced.
 
Publisher AMER SOC MECHANICAL ENGINEERS
 
Date 2011-10-25T20:48:21Z
2011-12-15T09:12:07Z
2011-10-25T20:48:21Z
2011-12-15T09:12:07Z
2009
 
Type Proceedings Paper
 
Identifier ICNMM 2009, PTS A-B,985-989
978-0-7918-4349-9
http://dspace.library.iitb.ac.in/xmlui/handle/10054/15818
http://hdl.handle.net/100/2486
 
Source 7th International Conference on Nanochannels, Microchannels and Minichannels,Pohang, SOUTH KOREA,JUN 22-24, 2009
 
Language English