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2008 Fiscal Year Self-evaluation Report

Mathematical studies on fluid motions under certain conditions

Research Project

  • PDF
Project/Area Number 18340030
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field General mathematics (including Probability theory/Statistical mathematics)
Research InstitutionHiroshima University

Principal Investigator

NAKAKI Tatsuyuki  Hiroshima University, 大学院・理学研究科, 教授 (50172284)

Project Period (FY) 2006 – 2009
Keywords流体 / 数学解析 / 数値解析 / 渦運動 / 多孔質媒体流 / 緩和振動 / 不安定性 / 自由境界問題
Research Abstract

流体の挙動を数理的な側面から解析する計画であり, 一般的な流体を扱うのではなく, 次の特殊な状況に特化する.
(1) 渦点問題 : 渦点の強さと初期位置にある対称性を仮定した場合を扱い, その挙動の解明を行う.少数の渦点や少数に帰着できる場合を主に扱う.
(2) 渦層, 渦輪, 渦領域の問題 : 弱非線形不安定性の解析や渦構造不安定化の非線形ダイナミクスに関して研究を行う.
(3) 1~2種類の流体問題 : 流体の挙動の解析のための数値計算法について, 保存すべき物理量の保存性や, 効率的かつ自然な界面決定に着目して, 数値計算法の開発と研究を行う.また, 多孔質媒体流などの界面や移流拡散を有する問題に対する数学的, 数値的な研究を行う.

  • Research Products

    (11 results)

All 2009 2008 2007

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (5 results) Book (1 results)

  • [Journal Article] ある拡散現象における解のサポートの反復した分離・融合について2009

    • Author(s)
      友枝謙二, 中木達幸
    • Journal Title

      日本応用数理学会論文誌 第19巻

      Pages: 25~37

    • Peer Reviewed
  • [Journal Article] Short-wavelength stability analysis of a helical vortex tube2009

    • Author(s)
      Y. Hattori and Y. Fukumoto
    • Journal Title

      Physics of Fluid 第21巻

      Pages: 014104(7)

    • Peer Reviewed
  • [Journal Article] Interfacial analysis to a chemotaxis model equation with growth in three dimension2007

    • Author(s)
      T. Tsujikawa
    • Journal Title

      Advanced Studies in Pure Mathematics 第47巻

      Pages: 785~805

    • Peer Reviewed
  • [Journal Article] Flux-free finite element method with Lagrange multipliers for two-fluid flows2007

    • Author(s)
      K. Ohmori and S. Saito
    • Journal Title

      Journal of Scientific Computing 第32巻

      Pages: 147-173

    • Peer Reviewed
  • [Journal Article] Stable marker-particle method for the Voronoi diagram in a flow field2007

    • Author(s)
      T. Nishida and K. Sugihara and M. Kimura
    • Journal Title

      Journal of Computational and Applied Mathematics 第202巻

      Pages: 377-391

    • Peer Reviewed
  • [Presentation] A singular limit method of two immiscible fluids in porous media2009

    • Author(s)
      T. Nakaki
    • Organizer
      Algoritmy 2009 : Conference on Scientific Computing
    • Place of Presentation
      Hotel PERMON, Podbanske(スロバキア)
    • Year and Date
      2009-03-19
  • [Presentation] Stationary solutions of shadow system for an adsorbate-induced phase transition model2008

    • Author(s)
      T. Tsujikawa
    • Organizer
      研究集会「自己相似構造と自己組織化に関する漸近解析」
    • Place of Presentation
      京都大学数理解析研究所
    • Year and Date
      2008-09-18
  • [Presentation] Curvature Instability of a vortex ring and a helical vortex tube2008

    • Author(s)
      Y. Fukumoto
    • Organizer
      XXII International Congress of Theoretical and Applied Mechanics (ICTAM)
    • Place of Presentation
      Adelaide Convention Center, Adelaide(オーストラリア)
    • Year and Date
      2008-08-26
  • [Presentation] Flux-free finite element method for immiscible two-fluid flows2008

    • Author(s)
      K. Ohmori
    • Organizer
      5th European Congress on Computational Methods in Applied Sciences and Engineering
    • Place of Presentation
      Venice(イタリア)
    • Year and Date
      2008-07-01
  • [Presentation] Numerical Detection of a New Instability Mode of a Vortex Ring2007

    • Author(s)
      Y. Hattori
    • Organizer
      FEDSM 2005, 5th Joint ASME/JSME Fluids Engineering Conference
    • Place of Presentation
      Sheraton San Diego Hotel, San Diego(アメリカ)
    • Year and Date
      2007-08-01
  • [Book] 技術に生きる現代数学(分担 : 第5章「渦を破壊せよ」)2008

    • Author(s)
      福本康秀
    • Total Pages
      206(133-174)
    • Publisher
      岩波書店

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Published: 2010-06-11   Modified: 2016-04-21  

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