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Establishment of guideline for scale-up method of ultrasonic processing by simultaneous control of micro- and macro- phenomena

Research Project

Project/Area Number 20K15079
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 27020:Chemical reaction and process system engineering-related
Research InstitutionTohoku University

Principal Investigator

Yamamoto Takuya  東北大学, 工学研究科, 助教 (10804172)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
KeywordsUltrasonic processing / Numerical simulation / Mass transfer / ソノケミストリー / 超音波 / 数値解析 / 音響キャビテーション / スケールアップ / マルチフェーズシミュレーション / 超音波処理
Outline of Research at the Start

液体中へ超音波を照射すると、キャビテーションが発生し、キャビテーション気泡の非線形振動、圧縮、崩壊が発生し、ラジカル種の生成、液体ジェットの発生等の現象が発生し、超音波による反応が発生するが、超音波はキャビテーション気泡によって減衰、散乱するため、スケールアップが難しい。本研究では、ミクロスケールのキャビテーション気泡振動とマクロスケールの音波の伝搬や音響流を同時に制御することで、スケールアップ指針を確立する。

Outline of Final Research Achievements

In order to establish scale-up guideline for ultrasonic treatment when ultrasound is irradiated in liquids, the present study developed a numerical simulation model capable of integrating the micro-scopic oscillations of cavitation bubbles, macro-scopic acoustic streaming and ultrasonic wave propagation. Through the developed numerical simulation model, it was found that the turbulent diffusion was increased by providing an external flow, resulting in enhancement of whole reaction rate in a vessel.

Academic Significance and Societal Importance of the Research Achievements

超音波処理はナノ粒子合成やエマルジョン化、表面洗浄や有機物分解等の様々な応用が期待されているが、小さい領域でのみしか反応を進行させられないことが問題であった。本研究によって、スケールアップ、反応槽全体での処理効率向上のための指針と方法を開発することに成功した。これにより、超音波処理の様々な応用範囲での活用が期待される。。

Report

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

    (13 results)

All 2022 2021

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (7 results) (of which Int'l Joint Research: 1 results,  Invited: 3 results) Book (1 results)

  • [Journal Article] Effect of gas injection on cavitation-assisted plasma treatment efficiency of wastewater2022

    • Author(s)
      Xu Yifan、Yamamoto Takuya、Hariu Daiki、Komarov Sergey
    • Journal Title

      Ultrasonics Sonochemistry

      Volume: 83 Pages: 105941-105941

    • DOI

      10.1016/j.ultsonch.2022.105941

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhancement of oscillation amplitude of cavitation bubble due to acoustic wake effect in multibubble environment2021

    • Author(s)
      Yamamoto Takuya、Komarov Sergey V.
    • Journal Title

      Ultrasonics Sonochemistry

      Volume: 78 Pages: 105734-105734

    • DOI

      10.1016/j.ultsonch.2021.105734

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-speed imaging of ultrasonic emulsification using a water-gallium system2021

    • Author(s)
      Yamamoto Takuya、Matsutaka Ryo、Komarov Sergey V.
    • Journal Title

      Ultrasonics Sonochemistry

      Volume: 71 Pages: 105387-105387

    • DOI

      10.1016/j.ultsonch.2020.105387

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of acoustic streaming in water and aluminum melt during ultrasonic irradiation2021

    • Author(s)
      Yamamoto Takuya、Kubo Kazuki、Komarov Sergey V.
    • Journal Title

      Ultrasonics Sonochemistry

      Volume: 71 Pages: 105381-105381

    • DOI

      10.1016/j.ultsonch.2020.105381

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Influence of ultrasound irradiation on transient solidification characteristics in DC casting process: Numerical simulation and experimental verification2021

    • Author(s)
      Yamamoto Takuya、Komarov Sergey V.
    • Journal Title

      Journal of Materials Processing Technology

      Volume: 294 Pages: 117116-117116

    • DOI

      10.1016/j.jmatprotec.2021.117116

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ソノケミカルプロセス設計指針構築に向けた基礎現象解明2022

    • Author(s)
      山本卓也
    • Organizer
      化学工学会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 超音波利用プロセススケールアップに向けた基礎現象解明と数値モデル開発2021

    • Author(s)
      山本卓也
    • Organizer
      化学工学会第20回反好会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Enhancement of oscillation amplitude of cavitation bubble in a cavitation cloud2021

    • Author(s)
      Takuya Yamamoto, Sergey Komarov
    • Organizer
      ESS-JSS-AOSS 1st JOINT SONOCHEMISTRY CONFERENCE
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] OpenFOAMにおけるVOF法の最適利用方法の探索2021

    • Author(s)
      山本卓也、コマロフセルゲイ
    • Organizer
      オープンCAEシンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] マルチバブル系における音響ウェーク効果による音響キャビテーション気泡振動増幅2021

    • Author(s)
      山本卓也、コマロフセルゲイ
    • Organizer
      キャビテーションに関するシンポジウム(第20回)
    • Related Report
      2021 Annual Research Report
  • [Presentation] マルチバブル系における音響キャビテーション気泡の振動に対する数値解析2021

    • Author(s)
      山本卓也、コマロフセルゲイ
    • Organizer
      第30回ソノケミストリー討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超音波利用プロセススケールアップに向けた基礎現象解明と数値モデル開発2021

    • Author(s)
      山本卓也
    • Organizer
      化学工学会反応工学部会若手会(反好会)第20回反好会講演会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Book] 化学工業2021

    • Author(s)
      山本卓也, コマロフセルゲイ
    • Total Pages
      6
    • Publisher
      化学工業
    • Related Report
      2021 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2023-01-30  

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