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Experimental study of concentration Marangoni convection induced by multiphoton absorption concentration modulation

Research Project

Project/Area Number 20K14647
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 19010:Fluid engineering-related
Research InstitutionShizuoka University

Principal Investigator

Mizushima Yuki  静岡大学, 工学部, 助教 (30844716)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords濃度差マランゴニ対流 / フェムト秒パルスレーザー / レーザー誘起プラズマ / 光ファイバープローブ / 流体工学 / 界面 / フェムト秒レーザーパルス / 近接場 / マランゴニ対流 / 光ファイバー / 光線追跡
Outline of Research at the Start

濃度差マランゴニ対流(CoMC)は半導体結晶の高純度化や熱交換器の伝熱促進等,幅広い分野で応用が進む一方,その流動特性の実験的解明は十分でない.そこで界面活性剤水溶液におけるCoMCをナノレベルで制御,時間分解計測する.まず界面分子濃度プローブ(LMDP)を開発し,静的な条件下にて界面で吸着・脱離を繰り返す活性剤の瞬時濃度とその時間変動を測定する.次に,フェムト秒パルスレーザー(fsパルス)照射により高い再現性でCoMCを誘起し,LMDPの濃淡検出周波数から界面流速とCoMCの初生(=濃度変調に対する応答時間,時定数)を計測することで,CoMCの素過程を明らかにする.

Outline of Final Research Achievements

We have developed the principle of a method for non-thermal control of fluid interfaces (MCM, Multiphoton absorption Concentration Modulation) via femtosecond laser pulses (fs pulses) and a method (LMDP, LMDP, Liquid-surface Molecular Densitometry Probing) for estimating interfacial molecular concentrations via an optical fiber probe.
In the MCM development, we developed a technique to induce concentration Marangoni convection by inactivating surfactants by spatially modulating and focusing fs pulses in arbitrary patterns, which form a local concentration gradient.
In the development of LMDP, we constructed a technique to measure the light intensity that changes according to the local concentration of surfactant using optical fibers. The principle of a new measurement for molecular concentration, microscopic distance, and velocity at the interface was developed.

Academic Significance and Societal Importance of the Research Achievements

濃度差マランゴニ対流は半導体結晶の高純度化や熱交換器の伝熱促進等、幅広い分野で応用が進む一方でその流動を明らかにする実験手法・実験条件は限定的である。
本研究は濃度差マランゴニ対流を光によって制御し、さらにその局所的な流れの様子を計測する手法を新たに確立した。いまだ不明な点の多い濃度差マランゴニ対流を多角的かつ実験的に明らかにする準備が整ったことは工学的に極めて有用であり、応用技術の高精度化や省エネに資する基盤研究として引き続き推進してゆく。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (18 results)

All 2023 2022 2021 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 3 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Newly Developed Method for The Liquid Thin-Film Thickness Measurement by Using Optical-fiber-based Reflective Probe2023

    • Author(s)
      Yuki Mizushima
    • Journal Title

      Nuclear Technology

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Effects of Curved Gas-liquid Interface on Light Reflectance Liquid-film measurement for an Optical Waveguide Film2023

    • Author(s)
      Hajime Furuichi, Kenichi Katono, Yuki Mizushima, Toshiyuki Sanada
    • Journal Title

      Nuclear Science and Engineering

      Volume: - Issue: 11 Pages: 2950-2960

    • DOI

      10.1080/00295639.2023.2180986

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Translational Temperature and Column Density Measurement of Laser Ablation Plasma Generated by Nanosecond Pulsed Laser2022

    • Author(s)
      桑原 彬,松井 信,水嶋 祐基
    • Journal Title

      Applied Plasma Science

      Volume: 30 Issue: 2 Pages: 65-70

    • DOI

      10.34377/aps.30.2_65

    • ISSN
      1340-3214, 2435-1555
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multipoint Gas-Liquid Phase Detection Method Based on a Thin-film Optical Waveguide2022

    • Author(s)
      Yoshia Miyachi, Hajime Furuichi, Toshiyuki Sanada, and Yuki Mizushima
    • Journal Title

      Review of Scientific Instruments

      Volume: 93 Issue: 6 Pages: 065107-065107

    • DOI

      10.1063/5.0075435

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electrodeless hydrogen production from seawater using femtosecond laser pulses2022

    • Author(s)
      Kuwahara Akira、Mizushima Yuki、Matsui Makoto、Kozuka Tomoki、Mase Nobuyuki
    • Journal Title

      RSC Advances

      Volume: 12 Issue: 15 Pages: 9304-9309

    • DOI

      10.1039/d2ra01337a

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Simultaneous measurement of film thickness and wave velocity in liquid-film flow with an optical fiber probe, micro-fabricated by a femtosecond pulse laser2021

    • Author(s)
      Hajime Furuichi and Yuki Mizushima
    • Journal Title

      Chemical Engineering Science

      Volume: 241 Pages: 1-14

    • DOI

      10.1016/j.ces.2021.116704

    • NAID

      120007146065

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 光ファイバープローブを用いた膜厚計測における界面形状と計測精度の関係2023

    • Author(s)
      飯岡大貴,真田俊之,水嶋祐基
    • Organizer
      化学工学会第88年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] フェムト秒レーザーを用いた海水からの直接水素製造法 の開発2022

    • Author(s)
      桑原 彬, 井上 柊, 水嶋 祐基, 松井 信, 小塚 智貴, 間瀬 暢之
    • Organizer
      応用物理学会 春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Preliminary Experiments of Hydrogen Production from Water using Nano-second YAG Laser2022

    • Author(s)
      Inoue, S., Kuwahara, A., Mizushima, Y., Matsui, M., and Mase, N.
    • Organizer
      15th International Workshop on Plasma Application and Hybrid Functionally Materials
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental and numerical assessment of liquid film thickness under high-speed gas flow2022

    • Author(s)
      T. Okui, S. Mizumi, S. Tabata, T. Sanada, Y. Mizushima
    • Organizer
      Turbomachinery Technical Conference & Exposition (ASME Turbo Expo 2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Newly developed method for the liquid thin-film thickness measurement by using optical-fiber-based reflective probe2022

    • Author(s)
      Y. Mizushima
    • Organizer
      The 12th Japan-U.S. Seminar on Two-Phase Flow Dynamics 2022 (JP-US STPFD’22)
    • Related Report
      2022 Annual Research Report
  • [Presentation] 光ファイバープローブを用いた液膜計測における界面波検出信号に関する実験的検討2022

    • Author(s)
      飯岡大貴,真田俊之,水嶋祐基
    • Organizer
      日本混相流シンポジウム2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] フィルム型光導波路を用いた液膜流計測時の薄膜部検出に関する考察2022

    • Author(s)
      寺本悠二郎,古市肇,真田俊之,水嶋祐基
    • Organizer
      日本混相流シンポジウム2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 光ファイバーを用いた圧力測定におけるプローブ先端形状の検討2022

    • Author(s)
      宮地慶亞,真田俊之,水嶋祐基
    • Organizer
      日本機械学会第100期流体工学部門講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] A newly developed method of direct hydrogen production from seawater using femtosecond pulse laser2022

    • Author(s)
      Mizushima Yuki, Kuwahara Akira, Matsui Makoto, Kozuka Tomoki, Mase Nobuyuki
    • Organizer
      International Chemical Engineering Symposia 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Remarks] 静岡大学研究者データベース

    • URL

      https://tdb.shizuoka.ac.jp/rdb/public/Default2.aspx?id=11281&l=0

    • Related Report
      2022 Annual Research Report
  • [Remarks] 静岡大学教員データベース

    • URL

      https://tdb.shizuoka.ac.jp/rdb/public/Default2.aspx?id=11281&l=0

    • Related Report
      2021 Research-status Report 2020 Research-status Report
  • [Patent(Industrial Property Rights)] 水素ガス製造方法および水素ガス製造装置2021

    • Inventor(s)
      桑原彬、水嶋祐基、松井信、間瀬暢之
    • Industrial Property Rights Holder
      桑原彬、水嶋祐基、松井信、間瀬暢之
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2020-188100
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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