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Fundamental Study on Improvement of Heat Transfer in Drag Reduced Flow by Viscoelastic Nanofluid

Research Project

Project/Area Number 16K06074
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Fluid engineering
Research InstitutionShizuoka University

Principal Investigator

Motozawa Masaaki  静岡大学, 工学部, 准教授 (50516185)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords粘弾性ナノ流体 / 粘弾性流体 / ナノ流体 / 抵抗低減 / 伝熱促進 / 流体工学 / 省エネルギー
Outline of Final Research Achievements

A viscoelastic fluid which is a certain kind of surfactant solution has the function to reduce drastically flow resistance in turbulent flow. However, heat transfer is largely suppressed in the drag reduced flow. On the other hand, there are many studies on heat transfer enhancement of fluid flow by adding nano-particles. In this study, the fundamental study on the improvement of the suppressed heat transfer in the drag reduced flow of the viscoelastic fluid by adding nano-particles. Such fluid which is the viscoelastic fluid by mixed with nano-particles is called as viscoelastic nanofluid in this study. The result shows that the suppressed heat transfer is slightly improved by addition of nanoparticles compared to the drag reduced viscoelastic fluid flow. The viscoelastic nanofluid in which contains the fiber shape nano-particles having large heat conductivity is more effective for achievement of improvement of heat transfer in drag reduced flow.

Academic Significance and Societal Importance of the Research Achievements

様々な熱輸送システムの高効率化に向けて,粘弾性流体の抵抗低減効果やナノ流体による伝熱促進に関する研究が世界中で広く実施されている.本研究では,粘弾性流体による抵抗低減流れにおける伝熱低下について,その改善方法としてナノ粒子を添加することによる効果を調べたものである.熱流動現象のアナロジーから流動抵抗低減と伝熱促進は相反するもので,このアナロジーを破ることを目指す基礎研究として学術的意義がある.また,近年,様々な場面で熱発生が問題となっており,より高効率の冷却技術が求められている.抵抗低減流れにおける伝熱改善を図る本研究はこれらの解決につながるものとして社会的意義を持っている.

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (16 results)

All 2019 2018 2017 2016 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (12 results) (of which Int'l Joint Research: 8 results) Remarks (3 results)

  • [Journal Article] Flow and Heat Transfer of Turbulent Magnetic Fluid Flow in Long Magnetic Field Area2019

    • Author(s)
      M. Motozawa, N. Nakayama, M. Fukuta
    • Journal Title

      Journal of the Japan Society of Applied Electromagnetics and Mechanics

      Volume: 27 Pages: 115-121

    • NAID

      130007679866

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] カーボンナノチューブを添加した粘弾性流体の流動抵抗と伝熱特性~流動抵抗と伝熱に対するカーボンナノチューブ濃度の効果~2018

    • Author(s)
      本澤政明, 稲葉充紀, 福田充宏, 川口靖夫
    • Organizer
      第55回日本伝熱シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Influence of Growth of Clustering Structure on Surface Tension of Magnetic Fluid2018

    • Author(s)
      M. Motozawa, S. Ishii, M. Fukuta
    • Organizer
      2018 International Conference on Electrorheological Fluids and Magnetorheological Suspensions
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Non-Contact Detection of Growth Process of Clustering Structure in Magnetic Fluid by Forced Rayleigh Scattering Method2018

    • Author(s)
      H. Ozaki, M. Motozawa, M. Fukuta
    • Organizer
      The 9th Asia-Pacific Symposium on Applied Electromagnetics and Mechanics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental Study on Improvement of Suppressed Heat Transfer of Viscoelastic Drag Reducing Flow by Adding Nano-particles2018

    • Author(s)
      M. Motozawa, M. Inaba, M. Fukuta
    • Organizer
      12th European Fluid Mechanics Conference
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 最大泡圧による磁性流体内に形成されるクラスタの定量評価の検討2018

    • Author(s)
      石井荘一郎, 本澤政明, 福田充宏
    • Organizer
      日本機械学会第96期流体工学部門講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] カーボンナノチューブを添加した粘弾性流体の流動抵抗と伝熱特性 ~流動抵抗と伝熱に対するカーボンナノチューブ濃度の効果~2018

    • Author(s)
      本澤政明,稲葉充紀,福田充宏,川口靖夫
    • Organizer
      第55回日本伝熱シンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] Experimental Study on Improvement of Suppressed Heat Transfer of Viscoelastic Drag Reducing Flow by Adding Nano-particles2018

    • Author(s)
      M. Motozawa , M. Inaba , M. Fukuta
    • Organizer
      12th European Fluid Mechanics Conference (EFMC12)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Experimental Study on Influence of Various Nanoparticles on Flow Resistance and Heat Transfer of Viscoelastic Fluid Flow2017

    • Author(s)
      M. Inaba, M. Motozawa, M. Fukuta
    • Organizer
      14th International Conference on Flow Dynamics (ICFD2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Streamwise Variation of Heat Transfer and Flow Characteristics of Magnetic Fluid Turbulence along Magnetic Field Region2017

    • Author(s)
      M. Motozawa, T. Tsukamoto, M. Fukuta
    • Organizer
      18th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2017)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Magnetic Field Dependence of Time Series Variation of Thermal Diffusivity of Kerosene-based Magnetic Fluid2017

    • Author(s)
      H. Ozaki, M. Motozawa, M. Fukuta, M. Motosuke
    • Organizer
      Ninth JSME-KSME Thermal and Fluids Engineering Conference(TFEC9)
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 磁性流体乱流の磁場印加による流動構造に関する実験的研究2016

    • Author(s)
      塚本拓真, 本澤政明, 川口靖夫, 福田充宏
    • Organizer
      日本機械学会第94期流体工学部門講演会
    • Place of Presentation
      山口大学 (宇部市, 山口県)
    • Year and Date
      2016-11-12
    • Related Report
      2016 Research-status Report
  • [Presentation] Recovery Process of Turbulent Magnetic Fluid in Downstream of Magnetic Field Area2016

    • Author(s)
      T. Tsukamoto, M. Motozawa, Y. Kawaguchi, M. Fukuta
    • Organizer
      11th International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements (ETMM11)
    • Place of Presentation
      NH Palermo Hotel (Palermo, Italy)
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Remarks] 静岡大学 福田・本澤研HP

    • URL

      https://wwp.shizuoka.ac.jp/fluidmech-lab/

    • Related Report
      2018 Annual Research Report
  • [Remarks] 福田本澤研HP

    • URL

      https://wwp.shizuoka.ac.jp/fluidmech-lab/

    • Related Report
      2017 Research-status Report
  • [Remarks] 静岡大学工学部機械工学科HP

    • URL

      http://newmech.eng.shizuoka.ac.jp/

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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