• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Mathematical analysis of problems rerated to the incompressible viscous fluid under the domain perturbation

Research Project

Project/Area Number 18K13439
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Ushikoshi Erika  横浜国立大学, 大学院環境情報研究院, 准教授 (20714041)

Project Period (FY) 2018-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords領域摂動 / ストークス方程式 / 特異摂動 / 固有値 / 非定常ストークス方程式 / ラメの方程式 / 固有値問題
Outline of Final Research Achievements

In this study, we consider the domain perturbation problem for the Stokes equations, which are known as the fundamental equations of fluid mechanics by the mathematical analysis. In particular, we analyze how the Green functions and eigenvalues changes under the domain perturbation. Hadamard variational formula plays an important role to investigate the relation between eigenvalues and the topological type of the domain. In this topic, we analyze the relation between “domain shape” and “flow (velocity vector of fluid)” by using this formula.

Academic Significance and Societal Importance of the Research Achievements

流体力学における領域摂動問題は,理論的側面だけではなく応用についても非常に重要な問題と言える.本研究では,アダマール変分公式導出の見地から数理解析的手法により同問題や関連する領域摂動問題のスペクトル解析について取り組むことを目指している.そして実際に,本研究を通してストークス方程式のアダマール変分公式に対する基礎理論の考察や,均質等方弾性体の固有振動の新規課題について研究成果を上げることに成功している.

Report

(7 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (21 results)

All 2023 2022 2021 2019 2018

All Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results) Presentation (17 results) (of which Int'l Joint Research: 3 results,  Invited: 12 results) Book (1 results)

  • [Journal Article] Removable time-dependent singularities of solutions to the Stokes equations2023

    • Author(s)
      Kozono, Hideo and Ushikoshi, Erika and Wakabayashi, Fumitaka
    • Journal Title

      Journal of Differential Equations

      Volume: 342 Pages: 472-489

    • DOI

      10.1016/j.jde.2022.10.005

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Asymptotic behavior of the eigenfrequencies of a thin elastic rod with non-uniform cross-section of extremely oblate shape2022

    • Author(s)
      Jimbo Shuichi、Ushikoshi Erika、Yoshihara Hiromasa
    • Journal Title

      Calculus of Variations and Partial Differential Equations

      Volume: 62 Issue: 1 Pages: 1-30

    • DOI

      10.1007/s00526-022-02325-1

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] The First Hadamard Variation of Neumann-Poincare eigenvalues on the sphere2019

    • Author(s)
      Kazunori Ando, Yoshihisa Miyanishi, Hyeonbae Kang and Erika Ushikoshi
    • Journal Title

      Proceedings of the American Mathematical Society

      Volume: 147 Issue: 3 Pages: 1073-1080

    • DOI

      10.1090/proc/14246

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 時間依存領域における大きな境界値に対するナビエ・ストークス方程式の時間周期解の存在について2023

    • Author(s)
      牛越惠理佳
    • Organizer
      第19回非線型の諸問題
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Periodic solutions of the Navier-Stokes equations for large flux on a time dependent domain2023

    • Author(s)
      牛越惠理佳
    • Organizer
      Mini-Symposium on Nonlinear PDEs and Their Applications
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 時間依存領域における大きな境界値に対するナビエ・ストークス方程式の時間周期解の存在について2023

    • Author(s)
      牛越惠理佳
    • Organizer
      金沢解析セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Asymptotic behavior of the eigenfrequencies of a thin elastic rod with non-uniform cross-section of extremely oblate shape2023

    • Author(s)
      牛越惠理佳
    • Organizer
      愛媛大学数学談話会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 極端なアスペクト比を伴う 断面をもつ細い弾性体に関す る固有値問題2022

    • Author(s)
      牛越惠理佳
    • Organizer
      日本応用数理学会2022年度年会
    • Related Report
      2022 Research-status Report
  • [Presentation] 極端なアスペクト比を伴う断面をもつ細い弾性体に関する固有値問題2022

    • Author(s)
      牛越惠理佳
    • Organizer
      第11回室蘭非線形解析研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Hadamard variational formula for the fundamental solution of the non stationary Stokes equations2022

    • Author(s)
      牛越惠理佳
    • Organizer
      自由境界問題に対する反復法の理論的および数値解析的研究
    • Related Report
      2021 Research-status Report
  • [Presentation] 極端なアスペクト比を伴う断面をもつ細い弾性体に関する固有値問題2021

    • Author(s)
      牛越惠理佳
    • Organizer
      微分方程式セミナー
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 極端なアスペクト比を伴う断面をもつ細い弾性体に関する固有値問題2021

    • Author(s)
      牛越惠理佳
    • Organizer
      日本数学会秋季総合分科会
    • Related Report
      2021 Research-status Report
  • [Presentation] Hadamard variational formula for the fundamental solution of the non stationary Stokes equations2021

    • Author(s)
      Erika Ushikoshi
    • Organizer
      RIMS共同研究「非圧縮性粘性流体の数理解析」
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ストークス方程式の領域摂動問題について2019

    • Author(s)
      牛越惠理佳
    • Organizer
      自由境界問題に対する反復法の理論的および数値解析的研究
    • Related Report
      2019 Research-status Report
  • [Presentation] Hadamard variational formula for the multiple eigenvalues of the Stokes equations with friction slip boundary conditions2019

    • Author(s)
      Erika Ushikoshi
    • Organizer
      Waseda Workshop on Partial Differential Equations 2019
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Hadamard vairational formula for the Stokes equations with friction slip boundary conditions2019

    • Author(s)
      Erika Ushikoshi
    • Organizer
      若手による流体力学の基礎方程式の研究集会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Hadamard variational formula for the multiple eigenvalue of the Stokes equations with slip boundary conditions2018

    • Author(s)
      Erika Ushikoshi
    • Organizer
      波動・振動・流れの制御と逆問題 -理論と数値計算-
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Hadamard variational formula for the multiple eigenvalue of the Stokes equations with friction slip boundary conditions2018

    • Author(s)
      Erika Ushikoshi
    • Organizer
      2018年度明治非線型数理セミナー
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Hadamard variational formula for the multiple eigenvalue of the Stokes equations with friction slip boundary conditions2018

    • Author(s)
      Erika Ushikoshi
    • Organizer
      Workshop on the Navier-Stokes flow
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] フリクション付きスリップ境界条件を課したストークス方程式の多重度のある固有値に対するアダマール変分公式について2018

    • Author(s)
      牛越惠理佳
    • Organizer
      自由境界問題に対する反復法の理論的および数値解析的研究
    • Related Report
      2018 Research-status Report
  • [Book] 微分積分学概論2022

    • Author(s)
      茨木貴徳・牛越惠理佳・竹居正登・原下秀士
    • Total Pages
      246
    • Publisher
      培風館
    • ISBN
      9784563012397
    • Related Report
      2021 Research-status Report

URL: 

Published: 2018-04-23   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi