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Research on the well-posedness, regularity, and justification of numerical methods for fluid problems and related boundary-value problems

Research Project

Project/Area Number 20K14357
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 12040:Applied mathematics and statistics-related
Research InstitutionThe University of Tokyo

Principal Investigator

Kashiwabara Takahito  東京大学, 大学院数理科学研究科, 准教授 (80771477)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsアイソパラメトリック有限要素法要素 / 摩擦型境界条件 / ナビエ・ストークス方程式 / プリミティブ方程式 / 動弾性体方程式 / 領域摂動誤差 / 不連続Galerkin法 / Signorini接触条件 / 摩擦型漏れ界面条件 / Rhoteの方法 / ビンガム流体 / H^2正則性 / 滑り境界条件 / 有限要素法 / アイソパラメトリック要素 / 不連続ガレルキン法 / シニョリーニ条件 / クーロン摩擦条件 / 接触・摩擦境界条件 / Navier-Stokes方程式 / 誤差評価 / 領域摂動
Outline of Research at the Start

流体の数値シミュレーションの数学的正当化を目指して、(I) 摩擦型境界条件モデルの発展と、(II) 滑らかな領域における偏微分方程式の数値解析という2つの研究テーマを設定する。(I)については、数値流体力学における摩擦型境界条件の利用を促進するため、既存モデルの拡張として、摩擦型界面条件モデルや摩擦型境界層条件モデルを提案し、適切性・正則性・数値解法の妥当性を証明する。(II)については、領域摂動を考慮した誤差評価の理論を、より高精度な有限要素法や他の数値解法の場合(差分法など)に拡張する。

Outline of Final Research Achievements

We studied (1) development of frictional boundary condition models and (2) numerical analysis of PDEs on a smooth domain, aiming to enhance mathematical justification of numerical simulations in fluid dynamics. For topic (1) we proposed friction conditions for interface problems and proved its well-posedness as well as the validity of numerical algorithms. In addition, we obtained regularity for the solution of the Navier-Stokes equations subject to frictional boundary conditions, and we proved unique solvability for linearized elasto-dynamic problems subject to a contact condition of Signorini type that contains velocity. For topic (2) we extended our theoretical analysis of the finite element method, which can handle domain perturbation, to higher-order isoparametric FEMs.
Moreover, we improved the Lp estimates for the discontinuous Galerkin time-stepping method applied to parabolic equations.

Academic Significance and Societal Importance of the Research Achievements

科学の諸分野に現れる流体現象を分析・予測するための手法として、数値シミュレーションは不可欠な技術となっているが、その急速な発展に対して数学的正当化が十分に追いつけていない側面がある。本研究は、摩擦型境界条件と有限要素法という2つのトピックにおいて、数学解析と数値解析双方の視点に整合する理論を構築することを目指したものである。偏微分方程式問題としての適切性や正則性、および数値解法の妥当性という観点から首尾一貫した数学理論を確立することは、流体の数値シミュレーション技術の基盤構築に貢献する。本研究の成果もその一助となることが期待される。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (32 results)

All 2024 2023 2022 2021 2020

All Journal Article (15 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 15 results,  Open Access: 5 results) Presentation (17 results) (of which Int'l Joint Research: 10 results,  Invited: 12 results)

  • [Journal Article] On Finite Volume Methods for a Navier-Stokes Variational Inequality2024

    • Author(s)
      Jing Feifei、Han Weimin、Kashiwabara Takahito、Yan Wenjing
    • Journal Title

      Journal of Scientific Computing

      Volume: 98 Issue: 2

    • DOI

      10.1007/s10915-023-02408-x

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The numerical methods for the coupled fluid flow under the?leak interface condition of the friction-type2023

    • Author(s)
      Zhou Guanyu、Jing Feifei、Kashiwabara Takahito
    • Journal Title

      Numerische Mathematik

      Volume: 153 Issue: 4 Pages: 729-773

    • DOI

      10.1007/s00211-023-01348-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Partially Centralized Model-Predictive Mean Field Games for controlling multi-agent systems2023

    • Author(s)
      Inoue Daisuke、Ito Yuji、Kashiwabara Takahito、Saito Norikazu、Yoshida Hiroaki
    • Journal Title

      IFAC Journal of Systems and Control

      Volume: 24 Pages: 100217-100217

    • DOI

      10.1016/j.ifacsc.2023.100217

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A fictitious-play finite-difference method for linearly solvable mean field games2023

    • Author(s)
      Inoue Daisuke、Ito Yuji、Kashiwabara Takahito、Saito Norikazu、Yoshida Hiroaki
    • Journal Title

      ESAIM: Mathematical Modelling and Numerical Analysis

      Volume: 57 Issue: 4 Pages: 1863-1892

    • DOI

      10.1051/m2an/2023026

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Unique solvability of a crack problem with Signorini-type and Tresca friction conditions in a linearized elastodynamic body2022

    • Author(s)
      Kashiwabara Takahito、Itou Hiromichi
    • Journal Title

      Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences

      Volume: 380 Issue: 2236 Pages: 20220225-20220225

    • DOI

      10.1098/rsta.2022.0225

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Justification of the hydrostatic approximation of the primitive equations in anisotropic space $L^\infty_H L^q_{x_3}(T^3)$2022

    • Author(s)
      Furukawa Ken、Kashiwabara Takahito
    • Journal Title

      Adv. Math. Sci. Appl.

      Volume: 31 Pages: 45-71

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] A robust discontinuous Galerkin scheme on anisotropic meshes2021

    • Author(s)
      Kashiwabara Takahito、Tsuchiya Takuya
    • Journal Title

      Japan Journal of Industrial and Applied Mathematics

      Volume: 38 Issue: 3 Pages: 1001-1022

    • DOI

      10.1007/s13160-021-00474-y

    • NAID

      210000181401

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The hydrostatic approximation for the primitive equations by the scaled Navier?Stokes equations under the no-slip boundary condition2021

    • Author(s)
      Furukawa Ken、Giga Yoshikazu、Kashiwabara Takahito
    • Journal Title

      Journal of Evolution Equations

      Volume: 21 Issue: 3 Pages: 3331-3373

    • DOI

      10.1007/s00028-021-00674-6

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Unique solvability of crack problem with time-dependent friction condition in linearized elastodynamic body2021

    • Author(s)
      Itou Hiromichi、Kashiwabara Takahito
    • Journal Title

      Mathematical notes of NEFU

      Volume: 28 Issue: 3(111) Pages: 121-134

    • DOI

      10.25587/svfu.2021.38.33.008

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Crouzeix?Raviart element for the Stokes equations with the slip boundary condition on a curved boundary2021

    • Author(s)
      Zhou Guanyu、Oikawa Issei、Kashiwabara Takahito
    • Journal Title

      Journal of Computational and Applied Mathematics

      Volume: 383 Pages: 113123-113123

    • DOI

      10.1016/j.cam.2020.113123

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] An analysis on the penalty and Nitsche's methods for the Stokes?Darcy system with a curved interface2021

    • Author(s)
      Zhou Guanyu、Kashiwabara Takahito、Oikawa Issei、Chung Eric、Shiue Ming-Cheng
    • Journal Title

      Applied Numerical Mathematics

      Volume: 165 Pages: 83-118

    • DOI

      10.1016/j.apnum.2021.02.006

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Pointwise error estimates of linear finite element method for Neumann boundary value problems in a smooth domain2020

    • Author(s)
      Kashiwabara Takahito、Kemmochi Tomoya
    • Journal Title

      Numerische Mathematik

      Volume: 144 Issue: 3 Pages: 553-584

    • DOI

      10.1007/s00211-019-01098-8

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Stability, analyticity, and maximal regularity for parabolic finite element problems on smooth domains2020

    • Author(s)
      Kashiwabara Takahito、Kemmochi Tomoya
    • Journal Title

      Mathematics of Computation

      Volume: 89 Issue: 324 Pages: 1647-1679

    • DOI

      10.1090/mcom/3500

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The hydrostatic Stokes semigroup and well-posedness of the primitive equations on spaces of bounded functions2020

    • Author(s)
      Giga Yoshikazu、Gries Mathis、Hieber Matthias、Hussein Amru、Kashiwabara Takahito
    • Journal Title

      Journal of Functional Analysis

      Volume: 279 Issue: 3 Pages: 108561-108561

    • DOI

      10.1016/j.jfa.2020.108561

    • NAID

      120006383828

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rigorous justication of the hydrostatic approximation for the primitive equations by scaled Navier-Stokes equations2020

    • Author(s)
      K. Furukawa, Y. Giga, M. Hieber, A. Hussein, T. Kashiwabara and M. Wrona
    • Journal Title

      Nonlinearity

      Volume: 33 Issue: 12 Pages: 6502-6516

    • DOI

      10.1088/1361-6544/aba509

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] $H^2$-regularity for the non-stationary Navier--Stokes equations under boundary conditions of friction type2024

    • Author(s)
      Takahito Kashiwabara
    • Organizer
      Seminar at University of Electronic Science and Technology of China
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 放物型方程式に対する時間半離散不連続 Galerkin 法の誤差評価2023

    • Author(s)
      柏原崇人
    • Organizer
      第 28 回計算工学講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] $H^2$-regularity up to boundary for a Bingham fluid2023

    • Author(s)
      Takahito Kashiwabara
    • Organizer
      ICIAM 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Error estimates of the finite element method in smooth domains2023

    • Author(s)
      Takahito Kashiwabara
    • Organizer
      MSJ-KMS Joint Meeting 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Error estimates of the DG-time stepping method for parabolic equations and the CIP method for advection equations2023

    • Author(s)
      Takahito Kashiwabara
    • Organizer
      International Workshop on Multiphase flows
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Finite element analysis for a generalized Robin boundary value problem in a smooth domain2022

    • Author(s)
      Takahito Kashiwabara
    • Organizer
      Colloquium Talk (online), The Hong Kong Polytechnic University
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 速度を含むSignorini型接触条件とTresca摩擦条件下での線形動弾性体方程式の一意可解性2022

    • Author(s)
      柏原崇人
    • Organizer
      九州関数方程式セミナー(オンライン)
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Finite element analysis for a generalized Robin boundary value problem in a smooth domain2022

    • Author(s)
      Takahito Kashiwabara
    • Organizer
      SIAM Annual Meeting (online)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Finite element analysis for a generalized Robin boundary value problem in a smooth domain2022

    • Author(s)
      Takahito Kashiwabara
    • Organizer
      WCCM-APCOM 2022 (online)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 放物型方程式に対する時間半離散不連続ガラーキン法の$L^\infty_T L^p_x$ノルム誤差評価2022

    • Author(s)
      柏原崇人
    • Organizer
      RIMS共同研究「数値解析が拓く次世代情報社会~エッジから富岳まで~」
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 速度を含むSignorini 型接触条件とTresca摩擦条件下での線形動弾性体方程式の一意可解性2022

    • Author(s)
      柏原崇人
    • Organizer
      非線形発展方程式セミナー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 速度を含むSignorini 型接触条件とTresca摩擦条件下での線形動弾性体方程式の一意可解性2022

    • Author(s)
      柏原崇人
    • Organizer
      北陸応用数理研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Finite element analysis for a generalized Robin boundary value problem in a smooth domain2022

    • Author(s)
      T. Kashiwabara
    • Organizer
      Colloquium Talk at Department of Applied Mathematics, The Hong Kong Polytechnic University
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 非定常な摩擦型・Signorini型境界条件問題の適切性について2021

    • Author(s)
      柏原崇人
    • Organizer
      東大数理講演会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Semigroup and maximal regularity approach to the primitive equations2021

    • Author(s)
      T. Kashiwabara
    • Organizer
      The Third Russia-Japan Workshop “Mathematical analysis of fracture phenomena for elastic structures and its applications” (CoMFoS21)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] The semigroup and maximal regularity approach to the primitive equations2020

    • Author(s)
      Takahito Kashiwabara
    • Organizer
      Oberwolfach MFO-Webinar on Mathematical Advances in Geophysical Flows
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Unique solvability of a crack problem with Signorini-type and given-friction conditions in a linearized elastodynamic body2020

    • Author(s)
      Takahito Kashiwabara
    • Organizer
      2nd Russia-Japan Workshop: Mathematical analysis of fracture phenomena for elastic structures and its applications
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited

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

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