Experiments on flow rate control of electrolyte polymer aqueous solution in micro-channels with electric fields applied.

• Azami Hiroshi

  Graduate School of Science & Technology, Niigata University

• Narumi Takatsune

  Faculty of Engineering Niigata University

• Hasegawa Tomiichi

  Faculty of Engineering Niigata University

• Matsubara Koji

  Faculty of Engineering Niigata University

• Toga Shinji

  Toyama National College of Technology

Bibliographic Information

Other Title

• 電場による微小流路内の電解質高分子水溶液の流動制御に関する実験的研究

Abstract

ER fluids of oil suspension type are generally used, while there is little report about aqueous type ER fluid. In this study, we have investigated the ER effect of electrolyte polymer aqueous solutions in micro flows. The electric field was applied on the flow of aqueous solution of anionic sodium polyacrylic acid in micro-rectangular channels. Small amounts of micro-particles were dispersed in the solution as tracers, and the velocity distribution were obtained with the measurement of the motions of particles. The symmetrical velocity distribution obtained in the flow with no electric field is distorted with the electric fields applied. The flow of anode side became slower and the velocity of cathode side became higher. It is considered that the anionic polymers were attracted to the anode and ununiform concentration of the polymer was generated. Furthermore, the flow rate decreased when the electric field intensity became high (above 4V/mm).

Journal

• NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan

  NCTAM papers, National Congress of Theoretical and Applied Mechanics, Japan 60 (0), 101-101, 2011

  National Committee for IUTAM

Keywords

• ER-fluid
• polymer
• flow rate control
• microchannel

Details

• CRID: 1390001205593802112
• NII Article ID: 130004604645
• DOI: 10.11345/japannctam.60.0.101.0
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed