In this paper, we propose a novel micropump, so-called micro vibrating flow pump (micro-VFP). Micro-VFP consists of a microchannel and an actively vibrating valve which has a cantilever like structure fixed on a wall of a microchannel. This valve works as an actuator for liquid flow in the microchannel. Since the valve is made of a flexible material including magnetic particles, it can be deformed by externally applying the magnetic field. After removing the magnetic field, the valve returns back to its original position by its own elasticity. By periodically changing the magnetic field, the valve vibrates and gives kinetic energy to the liquid. Furthermore, we designed sleeves on the side walls of the microchannel in the downstream of the valve. By adding the sleeves, the valve vibrates asymmetrically to generate net flow in one direction. To investigate the basic performance of micro-VFP, a prototype one is fabricated using soft lithography processes. The flow dynamics around the actuating valve is investigated in detail using particle image velocimetry.
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ASME-JSME-KSME 2011 Joint Fluids Engineering Conference
July 24–29, 2011
Hamamatsu, Japan
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4441-0
PROCEEDINGS PAPER
Flow Visualization Around Actuating Valve of Micro-Vibrating Flow Pump Available to Purchase
Osman Omran Osman,
Osman Omran Osman
Osaka University, Toyonaka, Osaka, Japan
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Hirofumi Shintaku,
Hirofumi Shintaku
Osaka University, Toyonaka, Osaka, Japan
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Satoyuki Kawano
Satoyuki Kawano
Osaka University, Toyonaka, Osaka, Japan
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Osman Omran Osman
Osaka University, Toyonaka, Osaka, Japan
Hirofumi Shintaku
Osaka University, Toyonaka, Osaka, Japan
Satoyuki Kawano
Osaka University, Toyonaka, Osaka, Japan
Paper No:
AJK2011-36015, pp. 339-341; 3 pages
Published Online:
May 25, 2012
Citation
Osman, OO, Shintaku, H, & Kawano, S. "Flow Visualization Around Actuating Valve of Micro-Vibrating Flow Pump." Proceedings of the ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 2, Fora. Hamamatsu, Japan. July 24–29, 2011. pp. 339-341. ASME. https://doi.org/10.1115/AJK2011-36015
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