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On the stability of boundary integral methods in wave problems

Research Project

Project/Area Number 18H03251
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 60100:Computational science-related
Research InstitutionKyoto University

Principal Investigator

Nishimura Naoshi  京都大学, 情報学研究科, 名誉教授 (90127118)

Co-Investigator(Kenkyū-buntansha) 高橋 徹  名古屋大学, 工学研究科, 准教授 (90360578)
新納 和樹  京都大学, 情報学研究科, 助教 (10728182)
吉川 仁  京都大学, 情報学研究科, 准教授 (90359836)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2020: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2019: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords波動方程式 / 境界積分法 / 安定性 / 櫻井杉浦法 / 波動問題 / 時間域境界積分法 / 時間域 / Sakurai Sugiura法
Outline of Final Research Achievements

Stability of time domain boundary integral methods for wave problems using collocation is a long standing tough problem which still remains open in spite of many efforts to solve it. This study proposes a method to investigate the stability of boundary integral methods in time domain using a solver of non-linear eigenvalue problems called the Sakurai Sugiura method. We test the proposed method via numerical experiments. It is found that the proposed method is effective not only in assessing the stability but in studying the accuracy of boundary integral formulations. We also proposed a stable fast method in 3D as well as a space-time method for variable domains, both of which turned out to be effective.

Academic Significance and Societal Importance of the Research Achievements

選点法を用いた時間域の境界積分法は,数値計算上の種々の利点を有する魅力的な解法でありながら,安定性に関する確実な知見が得られていないために広く用いられるには至っていない.本研究は安定性の問題を研究するための新しい方法を提供するものであり,今後,時間域解法を実問題に適用してゆく上で有用なツールとなることが期待される.特に,本手法は安定性の問題を周波数域の積分方程式の固有値問題に帰着させることから直感が効きやすく,安定性の高い積分方程式の定式化を得る上で有用であると考えられる.更に高精度の境界積分法を得る上で有用であることも提案手法の大きな利点である.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (19 results)

All 2021 2020 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (16 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results)

  • [Journal Article] 時間域BIEMを用いたゲームエンジンによる 3次元空間を移動する受音点のリアルタイム可聴化2020

    • Author(s)
      吉川 仁,鈴木 賢人
    • Journal Title

      計算数理工学論文集

      Volume: 20 Pages: 89-93

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Stability of boundary element methods for the two dimensional wave equation in time domain revisited2019

    • Author(s)
      Mio Fukuhara, Ryota Misawa, Kazuki Niino, Naoshi Nishimura
    • Journal Title

      Engineering Analysis with Boundary Elements

      Volume: 108 Pages: 321-338

    • DOI

      10.1016/j.enganabound.2019.08.015

    • NAID

      120006764463

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Boundary integral equation methods for the two dimensional wave equation in time domain revisited2019

    • Author(s)
      Mio Fukuhara, Ryota Misawa, Kazuki Niino, Naoshi Nishimura
    • Journal Title

      arXiv

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Open Access
  • [Presentation] 領域変形を伴う初期値境界値問題における時間域境界要素法の安定性に対する数値的解析手法2021

    • Author(s)
      森理人,新納和樹
    • Organizer
      計算工学講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 波動方程式の時間域積分方程式法の安定性に関する再考2020

    • Author(s)
      西村直志
    • Organizer
      日本計算数理工学会,計算数理工学フォーラム
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 非定常波動問題に対する時間領域境界要素法の開発と応用2020

    • Author(s)
      高橋徹、宮澤直哉、飯盛浩司、松本敏郎
    • Organizer
      CMD2020計力スクウェア
    • Related Report
      2020 Annual Research Report
  • [Presentation] 高速多重極境界要素法を用いた大規模3次元音場解析2020

    • Author(s)
      庄子 諒, 吉川 仁, 高橋 徹, 樫山 和男
    • Organizer
      第23回応用力学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] 吸音効果を考慮した境界要素法による時間域音場解析2020

    • Author(s)
      庄子 諒, 吉川 仁, 樫山 和男
    • Organizer
      第25回計算工学講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Stability of the boundary integral equation methods for the two dimensional wave equation in time domain revisited2019

    • Author(s)
      N. Nishimura
    • Organizer
      Waves 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Solution of eigenvalue problems with BEMs with applications to stability analysis of time domain BEMs for the wave equation2019

    • Author(s)
      N. Nishimura
    • Organizer
      Kinetics & BEM on the Saar
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 2次元波動方程式の時間域境界積分方程式の安定性に関する再考2019

    • Author(s)
      福原美桜
    • Organizer
      第65回理論応用力学講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 2次元動弾性問題の時間域境界要素法とその安定性に関する検討2019

    • Author(s)
      西村直志
    • Organizer
      第24回計算工学講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 3次元波動方程式における時間域境界要素法の定式化と安定性に関する考察2019

    • Author(s)
      西村直志
    • Organizer
      第24回計算工学講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 3次元波動方程式に対する境界要素法の時間基底、安定化、高速化について2019

    • Author(s)
      高橋徹
    • Organizer
      日本機械学会 第32回計算力学講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 2次元波動方程式の時間域境界積分法の安定性に関する一考察2018

    • Author(s)
      福原 美桜
    • Organizer
      日本計算工学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] On the stability of boundary integral methods for the wave equation in 2D2018

    • Author(s)
      Naoshi Nishimura
    • Organizer
      CoMFoS18
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 2次元波動方程式の時間域境界積分法の安定性について2018

    • Author(s)
      福原 美桜
    • Organizer
      機械学会計算力学講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 波動方程式のtransmission問題における時間域境界積分法の安定性について2018

    • Author(s)
      西村直志
    • Organizer
      応用数理学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Solution of eigenvalue problems for open domains with boundary element methods2018

    • Author(s)
      Naoshi Nishimura
    • Organizer
      WCCM2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2018-04-23   Modified: 2022-01-27  

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