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Generation of viscosity anisotropy in isotropic liquids and its control

Research Project

Project/Area Number 24656463
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Properties in chemical engineering process/Transfer operation/Unit operation
Research InstitutionChiba University

Principal Investigator

OTSUBO Yasufumi  千葉大学, 工学(系)研究科(研究院), 教授 (10125510)

Co-Investigator(Kenkyū-buntansha) HIROSE Yuji  千葉大学, 大学院工学研究科, 助教 (60400991)
Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywords粘度異方性 / エレクトロレオロジー / 電気流体力学効果 / 微粒子分散系
Research Abstract

The research purpose is to provide a method of generating viscosity anisotropy in liquids. On the application of high electric fields to suspensions, the particles form chain structures between electrodes and this leads to a drastic viscosity increase. When the suspensions are sandwiched between two pattern electrodes that produce nonuniform electric fields and the asymmetric structures of aggregated particles are constructed, the viscosity and yielding behavior show anisotropic responses. The viscosity anisotropy is also induced by the use of a single flat plate, on which the electrodes of line and space are coated.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (13 results)

All 2013 2012 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (7 results) Remarks (2 results)

  • [Journal Article] Simulation of electrohydrodynamic jet flow in dielectric fluids2013

    • Author(s)
      Hiroaki Sugiyama, Hironao Ogura, Takeo Shiojima, Yasufumi Otsubo
    • Journal Title

      Journal of Applied Fluid Mechanics

      Volume: Vol.6 Pages: 405-412

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of electrode materials on electrohydrodynamic flows of ethanol2013

    • Author(s)
      Yusuke Tsukahara, Yuji Hirose, Yasufumi Otsubo
    • Journal Title

      Colloids and Surface A : Physicochemical and Engineering Aspects

      Volume: Vol.425 Pages: 76-82

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Electrode Materials on Electrohydrodynamic Flows of Ethanol2013

    • Author(s)
      Yusuke Tsukahara, Yuji Hirose, Yasufumi Otsubo
    • Journal Title

      Colloids and Surface A: Physicochemical and Engineering Aspects

      Volume: 425 Pages: 76-82

    • DOI

      10.1016/j.colsurfa.2013.02.060

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Electrode Materials on Electrohydrodynamic Flows of Ethanol2013

    • Author(s)
      Yusuke Tsukahara, Yuji Hirose, Yasufumi Otsubo
    • Journal Title

      Colloids and Surfaces A: Physicochemical and Engineering Aspects

      Volume: 425 Pages: 76-82

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] 種々の電極材料におけるEHD効果と電極表面形状2013

    • Author(s)
      小山悠, 贋瀬裕二, 大坪泰文
    • Organizer
      化学工学会第45回秋季大会
    • Place of Presentation
      岡山
    • Related Report
      2013 Annual Research Report 2013 Final Research Report
  • [Presentation] Electrorheological effect of terminal oxidized poly(ethylene glycol) suspensions2012

    • Author(s)
      Yuji Hirose, Yasufumi Otsubo
    • Organizer
      The XVIth International Congress on Rheology
    • Place of Presentation
      Lisbon
    • Related Report
      2013 Final Research Report
  • [Presentation] 粒子分散系のエレクトロレオロジーに及ぼすパターン電極の影響2012

    • Author(s)
      高橋和也, 贋瀬裕二, 大坪泰文
    • Organizer
      化学工学会第44回秋季大会
    • Place of Presentation
      仙台
    • Related Report
      2013 Final Research Report 2012 Research-status Report
  • [Presentation] 末端酸化PEG微粒子分散系のER効果の温度依存性2012

    • Author(s)
      廣瀬裕二, 大坪泰文
    • Organizer
      日本レオロジー学会第39年会
    • Place of Presentation
      東京
    • Related Report
      2012 Research-status Report
  • [Presentation] Electrorheological effect of terminal oxidized poly(ethylene glycol)suspensions2012

    • Author(s)
      Yuji Hirose, Yasufumi Otsubo
    • Organizer
      The XVIth International Congress on Rheology
    • Place of Presentation
      Lisbon, Portugal
    • Related Report
      2012 Research-status Report
  • [Presentation] 末端酸化ポリエチレングリコールを用いた微粒子分散系のエレクトロレオロジー2012

    • Author(s)
      廣瀬裕二, 大坪泰文
    • Organizer
      化学工学会第44回秋季大会
    • Place of Presentation
      仙台
    • Related Report
      2012 Research-status Report
  • [Presentation] ポリエチレングリコール/ポリ酢酸ビニルブレンド粒子分散系のER効果2012

    • Author(s)
      廣瀬裕二, 大坪泰文
    • Organizer
      第60回レオロジー討論会
    • Place of Presentation
      名古屋
    • Related Report
      2012 Research-status Report
  • [Remarks]

    • URL

      http://otsubolab.tu.chibau.jp/

    • Related Report
      2013 Final Research Report
  • [Remarks] 大坪研究室ホームページ

    • URL

      http://otsubo-lab.tu.chiba-u.jp/

    • Related Report
      2013 Annual Research Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

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