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Mathematical analysis for concrete carbonation applying the regularity of a solution of quasi-linear parabolic equations

Research Project

Project/Area Number 16K17636
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Mathematical analysis
Research InstitutionNagasaki University (2018-2020)
Tomakomai National College of Technology (2016-2017)

Principal Investigator

KUMAZAKI Kota  長崎大学, 教育学部, 准教授 (30634563)

Project Period (FY) 2016-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords中性化現象 / 水分の輸送モデル / 准線形放物型方程式 / 自由境界問題 / 解の存在と一意性 / 数学解析 / 非線形現象 / 数理モデル / 準線形放物型方程式
Outline of Final Research Achievements

In this study, we derived a new transport model for moisture which combined a quasi-linear parabolic equation for the relative humidity distributed the whole material and a free boundary problem for the water saturation in microscopic pores. For this model, we succeeded in showing and the existence of a locally-in-time solution and a global-in-time solution, and the continuous dependence between the relative humidity and saturation.
Also, we proposed a transport model for carbon dioxide that takes into account the mutual changes between the atmosphere and water and showed the existence of a globally-in-time solution under a realistic boundary condition. Based on these results, we consider a mathematical model describing carbonation process consists of the above two transport models and succeeded in showing the existence of a locally-in-time solution by making a smooth approximation of the external force of the quasi-linear parabolic equation.

Academic Significance and Societal Importance of the Research Achievements

中性化現象は、建造物の持続性を損なう原因として、近年、関連する物質の輸送モデルが提案され、数値的な解析が進められているが、その妥当性は検証されていない。本研究では、中性化現象の中心である水分と二酸化炭素に対して、個々の輸送モデル、およびそれらを連成させた数理モデルの適切性を考察した。これらの結果は、数値的な解析を保証する上で重要な結果であると考える。また、本研究においては、巨視的領域と微視的領域を扱う二重尺度法を導入した数理モデルの適切性を構築した。こうした二重尺度法を用いた解析が足掛かりとなり、多孔質媒体のように、巨視的変化と微視的変化を伴う非線形現象の解析が進展していくと期待される。

Report

(6 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (31 results)

All 2020 2019 2018 2017 2016

All Journal Article (8 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 8 results) Presentation (23 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results)

  • [Journal Article] Global weak solvability, continuous dependence on data, and large time growth of swelling moving interfaces2020

    • Author(s)
      Kumazaki Kota, Muntean Adrian
    • Journal Title

      Interfaces and Free Boundaries

      Volume: 22 Issue: 1 Pages: 27-49

    • DOI

      10.4171/ifb/431

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Differentiability of a solution of a free boundary problem describing water adsorption2020

    • Author(s)
      Toyohiko Aiki, Kota Kumazaki
    • Journal Title

      Advances in Mathematical Sciences and Applications

      Volume: 29 Pages: 247-282

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Remark on differentiability of solutions of free boundary problems describing water adsorption2020

    • Author(s)
      Toyohiko Aiki, Kota Kumazaki
    • Journal Title

      Advances in Mathematical Sciences and Applications

      Volume: 29 Pages: 283-293

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Global existence of a solution for a multiscale model describing moisture transport in concrete materials2019

    • Author(s)
      Kota Kumazaki
    • Journal Title

      The bulletin of Irkutsk state university. Series Mathematics

      Volume: 28 Pages: 69-84

    • NAID

      120006988461

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Local solvability of a moving boundary problem describing swelling along a halfline2019

    • Author(s)
      Kota Kumazaki and Adrian Muntean
    • Journal Title

      Networks and Heterogeneous media

      Volume: 14

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Measurability of a solution of a free boundary problem describing adsorption phenomenon2017

    • Author(s)
      Kota Kumazaki
    • Journal Title

      Advances in Mathematical Sciences and Applications

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Multiscale model for moisture transport with adsorption phenomenon in concrete materials2017

    • Author(s)
      Kota Kumazaki, Toyohiko Aiki, Sato Naoki and Yusuke Murase
    • Journal Title

      Applicable Analysis

      Volume: 未定 Issue: 1 Pages: 41-54

    • DOI

      10.1080/00036811.2017.1325473

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Continuous dependence of a solution of a free boundary problem describing adsorption phenomenon for a given data2016

    • Author(s)
      Kota Kumazaki
    • Journal Title

      Advances in Mathematical Sciences and Applications

      Volume: 25 Pages: 289-305

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] 氷膜形成に関連するある1次元自由境界問題の時間大域的可解性2020

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2020年秋季総合分科会実関数論分科会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 多孔質媒体内の水分吸着を表す自由境界問題の解の正則性2020

    • Author(s)
      熊崎耕太、愛木豊彦
    • Organizer
      第46回発展方程式研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Global existence of a solution of a two-scale model for moisture transport in porous materials2019

    • Author(s)
      Kota Kumazaki
    • Organizer
      Equadiff 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] A two-scale problem describing moisture transport in porous materials2019

    • Author(s)
      熊崎耕太
    • Organizer
      Workshop on Mathematical Methods and Applications with Nonlinear Evolution Equations
    • Related Report
      2019 Research-status Report
  • [Presentation] 多孔質媒体内の水分の流れを表すマルチスケールモデルの時間大域的可解性2019

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2019秋季総合分科会(実関数論分科会)
    • Related Report
      2019 Research-status Report
  • [Presentation] 氷膜形成に関連するある1次元自由境界問題について2019

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2019年年会(実関数論分科会)
    • Related Report
      2019 Research-status Report
  • [Presentation] 多孔質媒体内の水分の流れを表すマルチスケールモデルについて2019

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2019年度年会
    • Related Report
      2018 Research-status Report
  • [Presentation] 多孔質媒体内で起こる水分膨張を表す自由境界問題の可解性について2018

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2018年度年会
    • Related Report
      2018 Research-status Report
  • [Presentation] On a free boundary problem describing swelling process in porous materials2018

    • Author(s)
      Kota Kumazaki and Adrian Muntean
    • Organizer
      The 12th AIMS Conference on Dynamical Systems, Differential Equations and Applications
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 水分膨張を記述するある自由境界問題の時間大域的な解の存在について2018

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2018年秋季総合分科会
    • Related Report
      2018 Research-status Report
  • [Presentation] A moving boundary problem describing swelling of a pocket of water along a halfline2018

    • Author(s)
      熊崎耕太
    • Organizer
      研究集会「非線形発展方程式を基盤とする現象解析に向けた数学理論の展開」(RIMS公開型)
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 二重尺度法を用いた多孔質媒体内の水分の流れを表す数理モデルとその解析2018

    • Author(s)
      熊崎耕太
    • Organizer
      九州関数方程式セミナー
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] 多孔質媒体内の水分の流れを表すあるマルチスケールモデルの時間大域的可解性について2018

    • Author(s)
      熊崎耕太
    • Organizer
      第44回発展方程式研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] 多孔質媒体内で起こる水分の吸着現象を表す自由境界問題について2017

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2017年年会
    • Place of Presentation
      首都大学東京
    • Year and Date
      2017-03-24
    • Related Report
      2016 Research-status Report
  • [Presentation] On a multiscale model for moisture transport appearing concrete carbonation process2017

    • Author(s)
      kota kumazaki, Toyohiko Aiki, Naoki Sato, Yusuke Murase
    • Organizer
      Equadiff 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 多孔質媒体内の水分膨張過程を表す自由境界問題について2017

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2017年秋季総合分科会
    • Related Report
      2017 Research-status Report
  • [Presentation] 多孔質媒体内の水分膨張過程を表す自由境界問題の可解性について2017

    • Author(s)
      熊崎耕太、Adrian Muntean
    • Organizer
      第43回発展方程式研究会
    • Related Report
      2017 Research-status Report
  • [Presentation] 多孔質媒体内で起こる水分膨張過程を表す自由境界問題の可解性について2017

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2017年会
    • Related Report
      2017 Research-status Report
  • [Presentation] 多孔質媒体内の吸着現象を伴った水分の流れを表すマルチスケールモデルについて2016

    • Author(s)
      熊崎耕太、愛木豊彦、佐藤直紀、村瀬勇介
    • Organizer
      第42回発展方程式研究会
    • Place of Presentation
      日本女子大学
    • Year and Date
      2016-12-25
    • Related Report
      2016 Research-status Report
  • [Presentation] 構造物の劣化を引き起こす中性化現象の数学モデル2016

    • Author(s)
      熊崎耕太
    • Organizer
      苫小牧高専教育研究フォーラム
    • Place of Presentation
      苫小牧ホワイトパークサンシャイン
    • Year and Date
      2016-12-14
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 吸着現象を考慮した多孔質媒体内の水分輸送モデルについて2016

    • Author(s)
      熊崎耕太
    • Organizer
      日本数学会2016年秋季総合分科会
    • Place of Presentation
      関西大学
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] On a multiscale model for moisture transport appearing concrete carbonation process2016

    • Author(s)
      K. Kumazaki, T. Aiki, N. Sato and Y. Murase
    • Organizer
      11th AIMS conference on Dynamical Systems, Differential Equations and Applications
    • Place of Presentation
      Hyatt Regency Orlando
    • Year and Date
      2016-07-01
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] コンクリートの中性化現象を表すマルチスケールモデルについて2016

    • Author(s)
      熊崎耕太
    • Organizer
      FMSPチュートリアルシンポジウム「表面・界面ダイナミクスの数理11」
    • Place of Presentation
      東京大学大学院数理科学研究所
    • Year and Date
      2016-04-20
    • Related Report
      2016 Research-status Report
    • Invited

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Published: 2016-04-21   Modified: 2022-01-27  

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