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Development and V&V of Integrated Coupled Analysis System for Tsunami-Resilient Design

Research Project

Project/Area Number 18K18062
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 60100:Computational science-related
Research InstitutionUniversity of Tsukuba (2019-2020)
The University of Tokyo (2018)

Principal Investigator

Mitsume Naoto  筑波大学, システム情報系, 助教 (10808083)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywords計算工学 / 大規模並列 / 連成解析 / 壁境界モデル / 津波解析 / 大規模並列解析 / 数値シミュレーション / 耐津波設計 / 津波 / 流体構造連成 / 有限要素法 / 粒子法 / V&V
Outline of Final Research Achievements

This research has developed an analysis system for tsunami-resilient design of structures, which can deal with interactions between floating objects and waves, and effect of large-scale tsunami by using parallel computer efficiently.
Regarding the large-scale parallel analysis, we have developed a dynamic load balancing algorithm that enables us to handle complicated analyses adopting multiple numerical methods by generalizing existing parallel algorithms. In terms of the coupled model between waves and solids, we have proposed a coupled model between finite element methods, which have widely used for analyses of solids because of its reliability, and particle methods, which has several advantages in analyses of waves. We have conducted simulations for verification and validation of our proposed algorithms, methods, and programs.

Academic Significance and Societal Importance of the Research Achievements

本研究で扱っている「津波と構造物との相互作用」という現象は、対象の複雑さ故に、数値解析の事例がきわめて少ない。それに対して本研究では、並列化時の効率性までを考慮に入れ、手法開発という部分からボトムアップ的に問題の解決を図った。開発した負荷分散アルゴリズムや連成モデルは学術的新規性を有している。
「津波と構造物との相互作用」を考慮した沿岸構造物の設計は、現在の設計方法から見るとかなり未来的なものである。しかしながら、計算機性能が発達した未来においては、想定外規模の災害に対する「建築物の粘り強さ」を評価することができ、より定量的に安全性を評価するための基礎手法として大きな意義をもつ。

Report

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

    (11 results)

All 2020 2019 2018

All Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results) Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Journal Article] A novel ghost cell boundary model for the explicit moving particle simulation method in two dimensions2020

    • Author(s)
      Zumei Zheng, Guangtao Duan, Naoto Mitsume, Shunhua Chen, Shinobu Yoshimura
    • Journal Title

      Computational Mechanics

      Volume: 66 Issue: 1 Pages: 87-102

    • DOI

      10.1007/s00466-020-01842-0

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An Explicit MPS/FEM Coupling Algorithm for Three-Dimensional Fluid-Structure Interaction Analysis, Engineering Analysis with Boundary Elements2020

    • Author(s)
      Z. Zheng, G. Duan, N. Mitsume, S. Chen, S. Yoshimura
    • Journal Title

      Engineering Analysis with Boundary Elements

      Volume: Vol.121 Pages: 192-206

    • DOI

      10.1016/j.enganabound.2020.10.002

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Parallel Analysis System for Free-Surface Flow Using MPS with Explicitly Represented Polygon Wall Boundary Model2020

    • Author(s)
      N. Mitsume, T. Yamada, S. Yoshimura
    • Journal Title

      Computational Particle Mechanics

      Volume: 7 Issue: 2 Pages: 279-290

    • DOI

      10.1007/s40571-019-00269-6

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Time-based dynamic load balancing algorithm for domain decomposition with particle method adopting three-dimensional polygon-wall boundary model2019

    • Author(s)
      Y. Mizuno, N. Mitsume, T. Yamada, S. Yoshimura
    • Journal Title

      Journal of Advanced Simulation in Science and Engineering

      Volume: 6 Issue: 2 Pages: 282-297

    • DOI

      10.15748/jasse.6.282

    • NAID

      130007699350

    • ISSN
      2188-5303
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fluid-Rigid Body Interaction Analysis for Mesh-Free Particle Method with Polygon Boundary Representation2018

    • Author(s)
      Y. Mizuno, N. Mitsume, T. Yamada, S. Yoshimura
    • Journal Title

      Theoretical and Applied Mechanics Japan

      Volume: 64 Issue: 0 Pages: 133-142

    • DOI

      10.11345/nctam.64.133

    • NAID

      130007585045

    • ISSN
      1348-0693, 1349-4244
    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Parallel Tsunami Analysis Based on MPS Method with ERP Wall Boundary Model2019

    • Author(s)
      N. Mitsume, T. Yamada, S. Yoshimura
    • Organizer
      7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COMPDYN 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Parallel Analysis of Fluid-Structure Interaction with Inconsistent Interfaces2019

    • Author(s)
      N. Mitsume, T. Yamada, S. Yoshimura
    • Organizer
      5th Japanese-German Workshop on Computational Mechanics
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Validation of Parallel Fluid-Structure Interaction Analysis System with Consistent-Interface Model2019

    • Author(s)
      N. Mitsume , T. Yamada, S. Yoshimura
    • Organizer
      The 6th Asian Pacific Congress on Computational Mechanics (APCOM2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 粒子法を用いた複合現象の連成シミュレーション2019

    • Author(s)
      三目直登
    • Organizer
      Prometech Simulation Conferece 2019 (PSC2019)
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] ポリゴン壁境界モデルを適用した並列 MPS 解析の動的負荷分散2018

    • Author(s)
      水野芳規, 三目直登, 山田知典, 吉村忍
    • Organizer
      第23回計算工学講演会
    • Related Report
      2018 Research-status Report
  • [Presentation] 計算時間に基づく粒子法の動的負荷分散アルゴリズムの検討2018

    • Author(s)
      水野芳規, 三目直登, 山田知典, 吉村忍
    • Organizer
      日本機械学会第31回計算力学講演会
    • Related Report
      2018 Research-status Report

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

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