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self-induced collective motion of dispersed multiphase flow and its control

Research Project

Project/Area Number 16H06936
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Fluid engineering
Research InstitutionOsaka University

Principal Investigator

WATAMURA Tomoaki  大阪大学, 基礎工学研究科, 助教 (40777736)

Research Collaborator SUGIYAMA Kazuyasu  大阪大学, 大学院基礎工学研究科, 助教 (50466786)
Project Period (FY) 2016-08-26 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords混相流 / 分散体 / 蛍光 / 流体力学 / 流体工学 / 光学計測 / マイクロバブル / PIV / LIF
Outline of Final Research Achievements

In this study, we conducted the development of the measurement technique for measuring the unsteady flow field around the collective motions of dispersed phase, and evaluate the effect of the dispersed phase motion on flow fields. We quantitatively measured velocity profile of the particle separation process in highly-concentrated dispersed multiphase flow. We also evaluated the effect of topological change of dispersed phase on the energy transport in a turbulent channel flow. As a result, we pointed out the non-uniform distribution of dispersed phase induce the modification of flow field.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Annual Research Report
  • Research Products

    (16 results)

All 2018 2017 2016 Other

All Presentation (15 results) (of which Int'l Joint Research: 6 results,  Invited: 4 results) Remarks (1 results)

  • [Presentation] コップの中に現れる飲料の対流について2018

    • Author(s)
      渡村友昭
    • Organizer
      化学工学会 粒子・流体プロセス部会 気液固分散工学サロン
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 飲料中の気泡が壁面近傍に形成する数密度分布について2017

    • Author(s)
      岩坪史弥,渡村友昭,杉山和靖,山本研一朗,四元祐子,塩野貴史
    • Organizer
      日本混相流学会 混相流シンポジウム2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] 浮上する軽量粒子群が作る容器内対流の非定常な下降流2017

    • Author(s)
      渡村友昭,小山幹,岩坪史弥,杉山和靖
    • Organizer
      日本混相流学会 混相流シンポジウム2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] 粒子濃度境界層の非定常流動構造2017

    • Author(s)
      渡村友昭,小山幹,岩坪史弥,杉山和靖
    • Organizer
      日本流体力学会年会2017
    • Related Report
      2017 Annual Research Report
  • [Presentation] ギネスビールの泡と模様:そもそも何を見ているのか?2017

    • Author(s)
      渡村友昭
    • Organizer
      東京大学 地震研究所 共同利用研究集会 キッチン地球科学:動手頭脳刺激実験の模索
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Application of Photobleaching Molecular Tagging Velocimetry to highly concentrated particle flow2017

    • Author(s)
      Motoki Koyama, Tomoaki Watamura1, Fumiya Iwatsubo, Kazuyasu Sugiyama
    • Organizer
      10th International Symposium on Measurement Techniques for Multiphase Flow
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental investigation of three-dimensional bubble cloud motion using UVP and recursive PIV2017

    • Author(s)
      Tomoaki Watamura, Atsuhide Kitagawa, Yuichi Murai
    • Organizer
      10th International Symposium on Measurement Techniques for Multiphase Flow
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bubble clustering in a glass of stout beer2017

    • Author(s)
      Tomoaki WATAMURA, Fumiya IWATSUBO, Kazuyasu SUGIYAMA, Kenichiro YAMAMOTO, Yuko YOTSUMOTO, Takashi SHIONO
    • Organizer
      70th Annual Meeting of The Division of Fluid Dynamics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Modulation of ow transition in microbubble Taylor- Couette ow2017

    • Author(s)
      TOMOAKI WATAMURA, YUJI TASAKA, YUICHI MURAI
    • Organizer
      70th Annual Meeting of The Division of Fluid Dynamics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Number density distribution of microbubbles in a buoyant driven convection2017

    • Author(s)
      Tomoaki WATAMURA, Fumiya IWATSUBO, Kazuyasu SUGIYAMA, Kenichiro YAMAMOTO, Yuko YOTSUMOTO, Takashi SHIONO
    • Organizer
      Workshop 'Transition, Control and Turbulence in Bubbly Flows'
    • Related Report
      2017 Annual Research Report
  • [Presentation] DESCENDING TEXTURE OF BUBBLE DISTRIBUTION IN A PINT GLASS2017

    • Author(s)
      Tomoaki WATAMURA, Fumiya IWATSUBO, Kazuyasu SUGIYAMA, Kenichiro YAMAMOTO, Yuko YOTSUMOTO, Takashi SHIONO
    • Organizer
      2017 Japan-U.S. seminar on Two-Phase flow Dynamics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] On the topological effect of dispersed phase interface on the modification of skin frictional drag2017

    • Author(s)
      Tomoaki WATAMURA1, Kazuyasu SUGIYAMA, Yutaka HIRAYAMA
    • Organizer
      the Ninth JSME-KSME Thermal and Fluids Engineering Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 散体対流の作り出す時空間数密度分布について2016

    • Author(s)
      渡村友昭
    • Organizer
      日本機械学会 北海道支部 特別講演会
    • Place of Presentation
      北海道大学(北海道札幌市)
    • Year and Date
      2016-12-09
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] 壁面近傍で出現する微細気泡濃度波の下降について2016

    • Author(s)
      渡村友昭,岩坪史弥,杉山和靖
    • Organizer
      日本流体力学会 年会2016
    • Place of Presentation
      名古屋工業大学(愛知県名古屋市)
    • Year and Date
      2016-09-27
    • Related Report
      2016 Annual Research Report
  • [Presentation] 浮上する気泡群の数密度構造と液相の速度場構造の相互作用について2016

    • Author(s)
      渡村友昭
    • Organizer
      日本機械学会 関西支部 第178研究会
    • Place of Presentation
      大阪市立大学サテライトキャンパス(大阪府大阪市)
    • Year and Date
      2016-08-29
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Remarks] 流体工学グループ杉山研究室 Tomoaki WATAMURA (Ph.D.)

    • URL

      http://flow.me.es.osaka-u.ac.jp/watamura/

    • Related Report
      2017 Annual Research Report

URL: 

Published: 2016-09-02   Modified: 2019-03-29  

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