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Studies on hierarchical simulation methods using slow variables to predict the flows of soft matter

Research Project

Project/Area Number 19H01862
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 13040:Biophysics, chemical physics and soft matter physics-related
Research InstitutionKyoto University

Principal Investigator

Taniguchi Takashi  京都大学, 工学研究科, 准教授 (60293669)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2020: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2019: ¥11,050,000 (Direct Cost: ¥8,500,000、Indirect Cost: ¥2,550,000)
Keywordsマルチスケールシミュレーション / ソフトマター物理 / 階層間連携 / 高分子流体
Outline of Research at the Start

ソフトマターの多くは特異な流動を示すことが知られているが,その物理的起源は不明なものが多い. これはソフトマターが, ミクロからメソスケールの内部構造を有し, さらにマクロな流動によってその内部構造が変化し,同時にミクロな構造の変化がマクロな流動に影響を及ぼすためである.このような系の流動を予測するには,階層的な遅い自由度とマクロな流動を連携させた新しい流動計算手法の確立が必要と考えた. 本研究では「高分子流体のマクロな流動」と「流動中の任意の位置での高分子の状態」を予測する階層間連携による流動計算法を確立し, 特異な流動の起源とミクロ階層中の遅い自由度との関係を明らかにする.

Outline of Final Research Achievements

Polymeric materials are used in various industrial fields and have become indispensable in our daily life. To manufacture such polymer products, a process of flowing a polymer melt into a flow channel and molding it is required. But it is not easy to predict the flow because the microscopic states of polymer chains and macroscopic flow of the polymeric fluid have a strong influence on each other. In this research, to predict the polymeric flow and state of polymer chains with higher accuracy, we have developed a multi-scale simulation method that can deal simultaneously with the state of the microscopic state of polymer chains and a macroscopic flow. In addition, we have succeeded in extending the multiscale simulation method so that we can deal with the temperature distribution, the molecular weight distribution of the polymer, and a flow with a free surface.

Academic Significance and Societal Importance of the Research Achievements

ソフトマターの非平衡応答挙動やその結果である流動挙動を予測するには,マクロな流動とミクロな状態変化を同時に扱うことが本質的に必要となる.本研究では,流体を多数の流体粒子に分割し,それぞれがミクロな高分子の状態を記述できるシミュレータを持ち,マクロな流動と結合するマルチスケールシミュレーション法を構築した.この方法により分子状態とマクロな流動を繋いで理解することできるようになったことは学術的のみならず,工学的にも価値の高い成果である。本方法は,原理的には流動のみならず,マルチスケール性が本質的な他の物理現象に対しても有効であり,これを利用してより正確な物性予測を可能とする方法論の端緒を開いた。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (50 results)

All 2022 2021 2020 2019 Other

All Journal Article (6 results) (of which Open Access: 3 results,  Peer Reviewed: 5 results) Presentation (41 results) (of which Int'l Joint Research: 21 results,  Invited: 2 results) Remarks (3 results)

  • [Journal Article] Machine Learning for the Flow Prediction of Fluids with Memory Effects on the Stress2021

    • Author(s)
      TANIGUCHI Takashi、MOLINA John J.
    • Journal Title

      JAPANESE JOURNAL OF MULTIPHASE FLOW

      Volume: 35 Issue: 3 Pages: 426-436

    • DOI

      10.3811/jjmf.2021.T008

    • NAID

      130008104319

    • ISSN
      0914-2843, 1881-5790
    • Year and Date
      2021-09-15
    • Related Report
      2021 Annual Research Report
    • Open Access
  • [Journal Article] Multiscale Simulation of the Flows of a Bidisperse Entangled Polymer Melt2021

    • Author(s)
      Sato Takeshi、Taniguchi Takashi
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 49 Issue: 2 Pages: 87-95

    • DOI

      10.1678/rheology.49.87

    • NAID

      130008038513

    • ISSN
      0387-1533, 2186-4586
    • Year and Date
      2021-04-15
    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Select Applications of Bayesian Data Analysis and Machine Learning to Flow Problems2021

    • Author(s)
      Seryo Naoki、Molina John J.、Taniguchi Takashi
    • Journal Title

      Nihon Reoroji Gakkaishi

      Volume: 49 Issue: 2 Pages: 97-113

    • DOI

      10.1678/rheology.49.97

    • NAID

      130008038604

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multiscale simulation of a polymer melt flow between two coaxial cylinders under nonisothermal conditions2021

    • Author(s)
      Yuji Hamada, Takeshi Sato, and Takashi Taniguchi
    • Journal Title

      Mathematics in Engineering

      Volume: 3 Issue: 6 Pages: 1-23

    • DOI

      10.3934/mine.2021042

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Viscoelastic phase separation model for ternary polymer solutions2021

    • Author(s)
      Yoshimoto Kenji, Taniguchi Takashi
    • Journal Title

      The Journal of Chemical Physics

      Volume: 154 Issue: 10 Pages: 104903-104903

    • DOI

      10.1063/5.0039208

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Learning the constitutive relation of polymeric flows with memory2020

    • Author(s)
      Seryo Naoki、Sato Takeshi、Molina John J.、Taniguchi Takashi
    • Journal Title

      Physical Review Research

      Volume: 2 Issue: 3 Pages: 033107-033107

    • DOI

      10.1103/physrevresearch.2.033107

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Application of machine-learned constitutive relations for well-entangled polymer melt flows2022

    • Author(s)
      Souta Miyamoto, John J. Molina, Takashi Taniguchi
    • Organizer
      American Physical Society (APS) March Meeting 2022
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hybrid simulations of polymer melt spinning using the molecular dynamics and a conventional macroscopic model2021

    • Author(s)
      Takashi Taniguchi, Yuji Hamada, Takeshi Sato
    • Organizer
      PPS-36 : The 36th International Conference of the Polymer Processing Society
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-Scale Simulation for well-entangled polymer melt flows2021

    • Author(s)
      Takashi Taniguchi
    • Organizer
      The 19th International Symposium on Applied Rheology
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Rheology of worm-like micelles solutions -DPD and slip-link simulation study-2021

    • Author(s)
      Takafumi Hiramatsu, Takashi Taniguchi
    • Organizer
      The 2021 International Chemical Congress of Pacific Basin Societies
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Learning the constitutive relation of polymer melt flows2021

    • Author(s)
      John J. Molina, Souta Miyamoto, Takashi Taniguchi
    • Organizer
      The 2021 International Chemical Congress of Pacific Basin Societies
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 粘弾性相分離2021

    • Author(s)
      谷口貴志
    • Organizer
      日本高分子学会,高分子計算機科学研究会 主催 第25回高分子計算機科学研究会講座 理論・シミュレーションの基礎
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 二様分布棒状繊維分散系のレオロジー2021

    • Author(s)
      植田晃亮, 谷口貴志
    • Organizer
      化学工学会 第52回秋季大会(2021)
    • Related Report
      2021 Annual Research Report
  • [Presentation] 学習された構成関係を用いた高分子液体の流動シミュレーション2021

    • Author(s)
      宮本奏汰, John Molina, 谷口貴志
    • Organizer
      化学工学会 第52回秋季大会(2021)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Well-entangled polymer melt flow simulations using a Machine-Learned constitutive relation2021

    • Author(s)
      宮本奏汰, John Molina, 谷口貴志
    • Organizer
      第69回レオロジー討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Numerical investigations for rheology of a worm-like micelle solution2021

    • Author(s)
      Takafumi Hiramatsu, Takashi Taniguchi
    • Organizer
      第69回レオロジー討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 機械学習モデルを構成関係に代用した高分子溶融体の流動シミュレーション2021

    • Author(s)
      宮本奏汰, John Molina, 谷口貴志
    • Organizer
      プラスチック成形加工学会第29回秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Flow simulations of well-entangled polymer melt with machine-learned constitutive relations2021

    • Author(s)
      宮本奏汰, John Molina, 谷口貴志
    • Organizer
      プラスチック成形加工学会関西支部令和3年度若手セミナー
    • Related Report
      2021 Annual Research Report
  • [Presentation] Mesoscale simulation model for entangled wormlike micelles2021

    • Author(s)
      Yuji Hamada Takeshi Sato Takashi Taniguchi
    • Organizer
      21st International Union of Materials Research Societies- International Conference in Asia (IUMRS-ICA 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Learning the constitutive relation of entangled polymer melts from a dual slip-link model2021

    • Author(s)
      Souta Miyamoto John Molina Takashi Taniguchi
    • Organizer
      21st International Union of Materials Research Societies- International Conference in Asia (IUMRS-ICA 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mesoscale simulation model for entangled wormlike micelles2021

    • Author(s)
      Takafumi Hiramatsu Takashi Taniguchi
    • Organizer
      21st International Union of Materials Research Societies- International Conference in Asia (IUMRS-ICA 2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Temperature Effects in the Flow of Well-Entangled Polymer Melts Between Two Co-Axial Cylinders: A Multi-Scale Approach2021

    • Author(s)
      Takashi Taniguchi Yuji Hamada Takeshi Sato
    • Organizer
      SIAM Conference on Computational Science and Engineering (CSE21)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Learning the Constitutive Relation of Polymer Flows with Memory: from Micro-Scale Dynamics to Macro-Scale Flow2021

    • Author(s)
      John Molina Naoki Seryo Takeshi Sato and Takashi Taniguchi
    • Organizer
      SIAM Conference on Computational Science and Engineering (CSE21)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Learning the constitutive relation of polymeric flows with memory2021

    • Author(s)
      Naoki Seryo Takeshi Sato Takashi Taniguchi and John J. Molina
    • Organizer
      American Physical Society (APS) March Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高分子成形プロセスにおける高分子溶融体流れのマルチスケールシミュレーション2021

    • Author(s)
      Takashi Taniguchi
    • Organizer
      京大テックフォーラム ソフトマター理工学の流れ問題 ~シミュレーションの視点から~
    • Related Report
      2020 Annual Research Report
  • [Presentation] Hybrid polymer melt spinning simulations combined a molecular dynamics and a conventional macroscopic mode2020

    • Author(s)
      Yuji Hamada Takeshi Sato Takashi Taniguchi
    • Organizer
      18th International Congress on Rheology
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PS69 Learning the Constitutive Relation of Non-Newtonian Fluids from Microscopic Dynamics2020

    • Author(s)
      Naoki Seryo Takashi Taniguchi and John J. Molina
    • Organizer
      18th International Congress on Rheology
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Mesoscale simulation of aqueous solutions of entangled wormlike micelles2020

    • Author(s)
      Takafumi Hiramatsu Takashi Tangiuchi
    • Organizer
      化学工学会 第51回秋季大会 (2020) SCEJ 51st Autumn Meeting
    • Related Report
      2020 Annual Research Report
  • [Presentation] Multiscale simulation of a polymer melt flow in between two coaxial cylinders under non-isothermal conditions II - Relaxation Dynamics after cessation of the applied pressure gradient ?2020

    • Author(s)
      Yuji Hamada Takeshi Sato Takashi Taniguchi
    • Organizer
      第68回レオロジー討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Mesoscale simulation of aqueous solutions of wormlike micelles2020

    • Author(s)
      Takafumi Hiramatsu Takashi Tangiuchi
    • Organizer
      第68回レオロジー討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Learning the constitutive relation of polymeric flows with memory2020

    • Author(s)
      Naoki Seryo Takeshi Sato John J. Molina Takashi Taniguchi
    • Organizer
      第68回レオロジー討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Slip-linkモデルにおけるセグメントダイナミクスの影響と流動解析2020

    • Author(s)
      Souta Miyamoto Takeshi Sato Takashi Taniguchi
    • Organizer
      第68回レオロジー討論会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Slip-link Simulations of Entangled Linear Polymer Melts under Fast Flows - Effect of the Stretch/Orientation-Induced Reduction of Friction -2019

    • Author(s)
      Takeshi Sato and Takashi Taniguchi
    • Organizer
      Annual European Rheology Conference 2019 (AERC 2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multiscale simulation of polymer melt flows in between two coaxial cylinders under non-isothermal conditions2019

    • Author(s)
      Yuji Hamada, Takeshi Sato and Takashi Taniguchi
    • Organizer
      MRS-Thailand 2019 (The 2nd Materials Research Society of Thailand International Conference)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Slip-link Simulations of Well-Entangled Linear Polymer Melts under Fast Flows - Role of the Stretch/Orientation-Induced Reduction of Friction -2019

    • Author(s)
      Takeshi Sato and Takashi Taniguchi
    • Organizer
      Polymers in Fast Flows
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simulation of a polymer melt flow in a channel by using a hierarchical approach2019

    • Author(s)
      Yuji Hamada, Takeshi Sato and Takashi Taniguchi
    • Organizer
      APCChE 2019 (The 18th Asian Pacific Confederation of Chemical Engineering Congress)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Rheological prediction of surfactant solution of entangled wormlike micelles with Slip-link model2019

    • Author(s)
      Takafumi Hiramatsu and Takashi Taniguchi
    • Organizer
      The International Workshop for East Asian Young Rheologists (IWEAYR 15)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Learning constitutive relations from micro-scale dynamics with memory effects in non-Newtonian fluids2019

    • Author(s)
      Naoki Seryo, John Jairo Molina and Takashi Taniguchi
    • Organizer
      The International Workshop for East Asian Young Rheologists (IWEAYR 15)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-Scale Simulation for Temperature Dependent Flows of Entangled Polymer Melts2019

    • Author(s)
      Takeshi Sato and Takashi Taniguchi
    • Organizer
      The International Workshop for East Asian Young Rheologists (IWEAYR 15)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高速流動下におけるからみあい高分子のダイナミクス - 摩擦低減効果の影響 -2019

    • Author(s)
      佐藤健, 谷口貴志
    • Organizer
      日本レオロジー学会第46年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 改良Slip-linkモデルを用いたひも状ミセル水溶液の流動解析2019

    • Author(s)
      平松崇文, 佐藤健, 谷口貴志
    • Organizer
      日本レオロジー学会第45年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 同軸二重円筒間を流れる高分子溶融体の非等温マルチスケールシミュレーション2019

    • Author(s)
      濱田悠司 佐藤健 谷口貴志
    • Organizer
      プラスチック成形加工学会第30回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Multiscale simulation of a polymer melt flow in between two coaxial cylinders under non-isothermal conditions2019

    • Author(s)
      濱田悠司, 佐藤健, 谷口貴志
    • Organizer
      日本レオロジー学会 第67回レオロジー討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 微粒子を含む高分子流動の解析:マルチスケールシミュレーションによるアプローチ2019

    • Author(s)
      佐藤健 谷口貴志
    • Organizer
      第67回レオロジー討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 伸長流動下における高分子溶融体の分子動力学シミュレーション2019

    • Author(s)
      濱田悠司, 谷口貴志
    • Organizer
      2019年度高分子基礎物性研究会・高分子計算科学研究会 合同討論会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Learning the Constitutive Relations of non-Newtonian Fluids with Memory2019

    • Author(s)
      Naoki Seryo, John Molina and Takashi Taniguchi
    • Organizer
      第9回ソフトマター研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Learning constitutive relations from micro-scale dynamics with memory effects in non-Newtonian fluids2019

    • Author(s)
      Naoki Seryo, John Molina and Takashi Taniguchi
    • Organizer
      Deep Learning And Pysics 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Remarks] Outreach (研究成果の紹介)

    • URL

      https://www-tph.cheme.kyoto-u.ac.jp/p/taniguch/Activity/Outreach.html

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report 2019 Annual Research Report
  • [Remarks] 京大テックフォーラム「ソフトマター理工学の流れ問題 ~シミュレーションの視点から~」

    • URL

      https://www.kyodai-original.co.jp/?p=9869

    • Related Report
      2020 Annual Research Report
  • [Remarks] ミクロの力学からポリマーの流動性を学ぶ

    • URL

      https://www.ai-japan.go.jp/technologies/knowledge-acquisitions-and-sharing/post-18/index.html

    • Related Report
      2020 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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