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ハイブリッドSPH法を援用した津波ハザードマップの高度化

Research Project

Project/Area Number 15F15369
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section外国
Research Field Hydraulic engineering
Research InstitutionHokkaido University

Principal Investigator

木村 一郎  北海道大学, 工学研究院, 准教授 (60225026)

Co-Investigator(Kenkyū-buntansha) IBRAHIM AHMED  北海道大学, 工学(系)研究科(研究院), 外国人特別研究員
Project Period (FY) 2015-11-09 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 2017: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2016: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 2015: ¥600,000 (Direct Cost: ¥600,000)
Keywords津波 / 粒子法 / ハザードマップ / 数値解析 / SPH / 津波ハザードマップ
Outline of Annual Research Achievements

本年度の主な成果は,平面二次元型津波災害予測モデルの構築と高度化,および津波に伴う土砂輸送の固液混相流解析モデルの構築の二点である.
1.平面二次元型津波遡上解析モデルの構築と高度化:津波は空間的に比較的大スケールの現象であるといえ,これをリアルタイムでシミュレーションするためには,三次元モデルは計算機負荷が大きい.このため,平面二次元浅水流モデル型のSPH法用いた津波シミュレーション手法についても検討を実施した.平面二次元モデルはオイラー法においても従来から用いられており,その三次元モデルに対する経済性の面での優位性は疑いの余地はない.本研究では既往の論文を参考に,独自の工夫をこらした津波数値解析モデルを新たに構築した.これらをいくつかの単純化された流れ場に適用し,その妥当性を示した.特に,多様な境界条件設定方法について検討し,そのモデル化に成功した.一方,河川を遡上する津波およびそれに伴う氾濫については,Hyper Grid型のモデルを新たに構築し,実河川の氾濫に適用することで,その妥当性を示した.これらの成果により,津波ハザードマップの構築に必要な基盤技術が確立されたと考えられる.
2.津波は水の輸送のみならず,土砂などの固体物も同時に輸送し,これにより地形変動を伴う場合がある.特に,津波防御構造物周辺の地形変動の予測は構造物安全性を理解する上でも重要である.このような現象のモデル化について,既往の粒子法のフレームワークの中で拡張を行うことで実現した.構築したモデルをいくつかの単純なケースで検証しそのだ同姓を示した.本モデルはハザードマップの高度化に貢献するのみならず,津波構造物の計画・設計等に貢献するものと期待される.

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Report

(3 results)
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (14 results)

All 2017 2016

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Acknowledgement Compliant: 4 results) Presentation (4 results) (of which Int'l Joint Research: 3 results)

  • [Journal Article] SPH MODELING OF TSUNAMI PROPAGATION AND HIGHEST RUN-UP: CASE STUDY - OKUSHIRI ISLAND TSUNAMI2017

    • Author(s)
      AHMED M. ABDELRAZEK, ICHIRO KIMURA and YASUYUKI SHIMIZU
    • Journal Title

      E-proceedings of the 37th IAHR World Congress, Kuala Lumpur, Malaysia

      Volume: 1 Pages: 1-6

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SPH Based shallow water simulation of the 1993 Okushiri tsunami experiment2017

    • Author(s)
      Ahmed M. Abdelrazek, Ichiro Kimura and Yasuyuki Shimizu
    • Journal Title

      4th International Symposium of Shallow Flows, Eindhoven University Technology, NL, (26-28 June, 2017)

      Volume: 1 Pages: 1-3

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Large Scale Flood Modelling Using Hyper Grid Approach2017

    • Author(s)
      Malik Ahmad ALI, Ichiro KIMURA, Ahmed M. ABDELRAZEK3 and Yasuyuki SHIMIZU
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

      Volume: 73(4) Pages: 319-324

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] SPH MODELING OF TSUNAMI PROPAGATION AND HIGHEST RUN-UP: CASE STUDY - OKUSHIRI ISLAND TSUNAMI,2017

    • Author(s)
      AHMED M. ABDELRAZEK, ICHIRO KIMURA and YASUYUKI SHIMIZU
    • Journal Title

      E-proceedings of the 37th IAHR World Congress August, 2017, Kuala Lumpur, Malaysia

      Volume: 1 Pages: 1-6

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Simulation of the erosion and seepage failure around sheet pile using two-phase WC-SPH method2016

    • Author(s)
      Ahmed M. Abdelrazek, Ichiro Kimura, Yasuyuki Shimizu
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. A2 (Applied Mechanics (AM))

      Volume: 72 Issue: 2 Pages: I_495-I_504

    • DOI

      10.2208/jscejam.72.I_495

    • NAID

      130005311952

    • ISSN
      2185-4661
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Numerical simulation on local scour below a weir using Two-phase WC-SPH method2016

    • Author(s)
      A.M. Abdelrazek, Ichiro Kimura and Yasuyuki Shimizu
    • Journal Title

      Scour and Erosion, Harris, Whitehouse & Moxon (Eds) 2016 Taylor & Francis Group, London, ISBN 978-1-138-02979-8

      Volume: 1 Pages: 61-67

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Two-phase numerical simulation of scour due to free fall of water jet using WCSPH method2016

    • Author(s)
      Ahmed M. Abdelrazek, Ichiro Kimura, Yasuyuki Shimizu
    • Journal Title

      Proceedings of 11th International Symposium on Ecohydraulics, Melbourne, Australia

      Volume: 11 Pages: 1-7

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Simulation of three-dimensional rapid free-surface granular flow past different types of obstructions using the SPH method2016

    • Author(s)
      AHMED M. ABDELRAZEK, ICHIRO KIMURA, YASUYUKI SHIMIZU
    • Journal Title

      Journal of Glaciology

      Volume: 2016 Issue: 232 Pages: 1-13

    • DOI

      10.1017/jog.2016.22

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical modeling of Surge waves induced by dam failure over mobile bed using Two-phase WCSPH Model2016

    • Author(s)
      AHMED M. ABDELRAZEK, ICHIRO KIMURA, YASUYUKI SHIMIZU
    • Journal Title

      Proceedings of RiverFlow 2016, Sent Luis USA

      Volume: 2016 Pages: 1-6

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Erosion and seepage failure around sheet-pile using two-phase WC-SPH model2016

    • Author(s)
      AHMED M. ABDELRAZEK, ICHIRO KIMURA, YASUYUKI SHIMIZU
    • Journal Title

      Proceedings of ISRS 2016 , Stuttgart, Germany

      Volume: 2016 Pages: 1-6

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Presentation] Simulation of Flash-Flood Impacting on a Bridge using Weakly Compressible Smoothed Particle Hydrodynamics (WC-SPH) Method2017

    • Author(s)
      A.M. Abdelrazek, Ichiro Kimura and Yasuyuki Shimizu
    • Organizer
      The 10th Symposium on River, Coastal and Estuarine Morphodynamics, RCEM 2017
    • Place of Presentation
      Università di Padova (Padova, Italy)
    • Year and Date
      2017-09-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SPH Based shallow water simulation of the 1993 Okushiri tsunami experiment.2017

    • Author(s)
      A.M. Abdelrazek, Ichiro Kimura and Yasuyuki Shimizu
    • Organizer
      The 4th International Symposium Shallow Flows (ISSF 2017), June 26 - 28, 2017, Eindhoven Netherlands
    • Place of Presentation
      Eindhoven University of Technology (Eindhoven, Netherlands)
    • Year and Date
      2017-06-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simulation of Flash-Flood Impacting on a Bridge using Weakly Compressible Smoothed Particle Hydrodynamics (WC-SPH) Method2017

    • Author(s)
      Ahmed Mohamed Abdelrazek Ibrahim
    • Organizer
      3rd International Symposium on Flash Floods in Wadi Systems (3rd ISFF)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical Investigation of the Propagation of Shock Waves and Dead Zones in Rapid Flows of Granular Materials using SPH Method2016

    • Author(s)
      AHMED M. ABDELRAZEK, ICHIRO KIMURA, YASUYUKI SHIMIZU
    • Organizer
      Applied Mechanics, JSCE
    • Place of Presentation
      北海道大学(北海道,札幌市)
    • Year and Date
      2016-05-21
    • Related Report
      2015 Annual Research Report

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Published: 2015-11-26   Modified: 2024-03-26  

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