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Mathematical analysis of effect of boundary on viscous fluid

Research Project

Project/Area Number 20K14345
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 12020:Mathematical analysis-related
Research InstitutionKobe University

Principal Investigator

Higaki Mitsuo  神戸大学, 理学研究科, 准教授 (20868202)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsNavier-Stokes方程式 / 境界層理論 / 壁法則 / 正則性理論 / John領域 / 均質化理論 / 外部問題 / スペクトル理論 / 非圧縮性粘性流体 / 軸対称流 / 解の漸近挙動 / 安定性 / 制御問題 / Navier-Stokes 方程式
Outline of Research at the Start

本研究では、水などの粘性流体が物体壁面から受ける効果を解析する。現実の流体が接する壁面は微視的な粗さを持つ境界と見なされることが多い。粗面付近の流れの構造解析に有効な手法として、流体力学における壁法則が知られている。壁法則を応用し、粗面の効果を Navier-Stokes 方程式の正則性理論の観点から調べる。また、回転物体周りの平面流体の数理解析は基本的な研究であるものの、二次元外部問題に特有の困難が知られている。定常解の安定性解析に取り組み、数学的一般論の確立を目指す。

Outline of Final Research Achievements

This research project aims to investigate the effect of boundaries on viscous fluids such as water and air. As typical problems, the Navier-Stokes system is considered in a domain with rough boundaries and in the exterior domain to a two-dimensional obstacle. The three main results are: establishment of boundary regularity theory for the linear/nonlinear steady system in rough John domains, analysis of the localization effect of wall suction on steady flows and its application to three-dimensional axisymmetric flows, and the proof of asymptotic stability of a suction flow with critical decay in an exterior disk.

Academic Significance and Societal Importance of the Research Achievements

流体方程式の境界正則性理論をJohn領域において確立できたことは理論・応用の両面において意義深い。実際、John領域はKoch雪片などのフラクタル境界を持つ領域を含むクラスとして知られており、自然界で見られる粗面や複雑境界のモデルとしてより妥当なものである。また、壁面吸込を伴う流れがNavier-Stokes方程式の解にある種の安定化効果を与えることを、その周りにおける非線形方程式の定常解の存在や擾乱に対する長時間安定性といった多角的な観点から捉えた。これは特有の困難が知られる平面流体の数学理論の進展につながる成果であるため意義深い。

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

    (26 results)

All 2024 2023 2022 2021 2020 Other

All Int'l Joint Research (8 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results) Presentation (12 results) (of which Int'l Joint Research: 6 results,  Invited: 12 results)

  • [Int'l Joint Research] ボルドー大学(フランス)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Morningside Center of Mathematics(中国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ボルドー大学(フランス)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] Morningside Center of Mathematics(中国)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] セルジー大学(フランス)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] シカゴ大学(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] セルジー大学(フランス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] シカゴ大学(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Stability of planar exterior stationary flows with suction2024

    • Author(s)
      Mitsuo Higaki
    • Journal Title

      Journal of Functional Analysis

      Volume: 286 Issue: 4 Pages: 1-48

    • DOI

      10.1016/j.jfa.2023.110272

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Higher-Order Boundary Layers and Regularity for Stokes Systems over Rough Boundaries2023

    • Author(s)
      Mitsuo Higaki, Jinping Zhuge
    • Journal Title

      Archive for Rational Mechanics and Analysis

      Volume: 247 Issue: 4 Pages: 1-61

    • DOI

      10.1007/s00205-023-01899-0

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Existence of planar non-symmetric stationary flows with large flux in an exterior disk2023

    • Author(s)
      Higaki Mitsuo
    • Journal Title

      Journal of Differential Equations

      Volume: 360 Pages: 182-200

    • DOI

      10.1016/j.jde.2023.02.057

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Large-scale regularity for the stationary Navier-Stokes equations over non-Lipschitz boundaries2023

    • Author(s)
      Mitsuo Higaki, Christophe Prange, Jinping Zhuge
    • Journal Title

      Analysis & PDE

      Volume: -

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Stability of a two-dimensional stationary rotating flow in an exterior cylinder2021

    • Author(s)
      Mitsuo Higaki
    • Journal Title

      Mathematische Nachrichten

      Volume: -

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Regularity for the stationary Navier-Stokes equations over bumpy boundaries and a local wall law2020

    • Author(s)
      Mitsuo Higaki, Christophe Prange
    • Journal Title

      Calculus of Variations and Partial Differential Equations

      Volume: 59 Issue: 4

    • DOI

      10.1007/s00526-020-01789-3

    • NAID

      120006956470

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 円柱外部における軸対称Navier-Stokes定常流の存在定理2024

    • Author(s)
      檜垣充朗
    • Organizer
      流体数学セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Existence of steady Navier-Stokes flows exterior to an infinite cylinder2023

    • Author(s)
      Mitsuo Higaki
    • Organizer
      Seminaire de Physique Mathematique - EDP
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On Navier-Stokes flows exterior to an infinite cylinder2023

    • Author(s)
      Mitsuo Higaki
    • Organizer
      East Asian Workshop on PDEs from Kinetics and Continuum Mechanics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 円板外部における厳密定常解の安定性について2023

    • Author(s)
      檜垣充朗
    • Organizer
      数理流体力学若手研究会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Wall laws over rough boundaries2023

    • Author(s)
      Mitsuo Higaki
    • Organizer
      Mathematical Analysis of Viscous Incompressible Fluid
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Planar Navier-Stokes flows with flux in exterior domains2022

    • Author(s)
      Mitsuo Higaki
    • Organizer
      International Workshop on Multiphase Flows: Analysis, Modelling and Numerics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Stability Analysis of Two-Dimensional Stationary Flows in An Exterior Cylinder2022

    • Author(s)
      Mitsuo Higaki
    • Organizer
      Minisymposium “Recent Developments in the Mathematical Analysis of Viscous Fluids” at SIAM Conference on Analysis of Partial Differential Equations
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Large-scale boundary regularity for stationary viscous incompressible flows2022

    • Author(s)
      檜垣充朗
    • Organizer
      第13回名古屋微分方程式研究集会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 粗面領域における Navier-Stokes 方程式の正則性理論と局所壁法則2021

    • Author(s)
      檜垣充朗
    • Organizer
      研究集会「微分方程式の総合的研究」
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Regularity for the stationary Navier-Stokes equations over bumpy boundaries and a local wall law2020

    • Author(s)
      檜垣充朗
    • Organizer
      京都大学 NLPDE セミナー
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Regularity for the stationary Navier-Stokes equations over bumpy boundaries and a local wall law2020

    • Author(s)
      檜垣充朗
    • Organizer
      第45回偏微分方程式論札幌シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Regularity Estimates for the Stationary Navier-Stokes Equations Over Bumpy Boundaries2020

    • Author(s)
      Mitsuo Higaki
    • Organizer
      International Workshop on Multiphase Flows: Analysis, Modelling and Numerics
    • 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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