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Development of the software for the analysis of the disaster of an earthquake using the approach of the computational fluid dynamics

Research Project

Project/Area Number 09558049
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section展開研究
Research Field Natural disaster science
Research InstitutionOchanomizu University

Principal Investigator

KAWARURA Tetuya  Ochanomizu University, Graduate School of Humanities and Sciences, Professor, 人間文化研究科, 教授 (40143383)

Co-Investigator(Kenkyū-buntansha) OSHIMA Yoshitaka  Maeda Kensetsu Inc., Section of Construction, chief, 土木設計部, 課長(研究職)
IWATSU Reima  Tokyo Denki University, Department of Mechanical Engineering, Associate Professor, 工学部, 助教授
SATO Hiroshi  Ochanomizu University, Graduate School of Humanities and Sciences, Professor, 人間文化研究科, 教授 (10017197)
Project Period (FY) 1997 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥5,900,000 (Direct Cost: ¥5,900,000)
Fiscal Year 1999: ¥1,000,000 (Direct Cost: ¥1,000,000)
Fiscal Year 1998: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1997: ¥3,000,000 (Direct Cost: ¥3,000,000)
KeywordsEarthquake / Computer Software / Propagation of Seismic Wave / Fire Tornado / Low Mach Number Approximation / Vortex Breakdown / Free Surface / Numerical Simulation / 火災旋風 / 熱対流 / コンピュータグラフィックス / 自由表面 / コリオリ力 / スタンダード格子 / 高温熱源 / サーマルプルーム
Research Abstract

There are many investigations concerning to the disaster of an earthquake. However there are few studies which use CFD (Computational Fluid Dynamics) approach except for those of the tidal wave. In the present research, we focus on this point and try to apply CFD method. The present research consists of two parts. One is the prediction of the flow field caused by the big fire due to an earthquake and the other is analysis of the propagation of the seismic wave and make clear the mechanism of the unexpected amplification of the wave.
For the study of the flow induced by the big fire, two numerical methods are developed and verified. By using these methods, it is found that a fire tornado is actually generated by Coriolis force, moving around and finally breaks down and these processes are repeated temporary. The effect of the stratification on the formation of the tornado is also investigated. The flow visualization is also focused in this study and it is found that the volume rendering technique is suitable for analizing the results.
In general, an alluvium lays on a hard base rock. This means that it is possible to regard this propagation problem as that of the water wave in a container, i.e. it is possible to consider the alluvium as the water and the base rock as the container. By using this analogy, the propagation of the water wave on the free surface is simulated instead of the propagation of seismic waves. The water wave is produced by the deformation of a container in time. Using the methods developed in this study, the water waves in the two typical shape of the container which is similar to the Hanshin and San Francisco area are simulated and it is found that the amplitude of the wave becomes large at the special positions which are peculiar to the shape of the container due to the complex reflection and interference.

Report

(4 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • 1997 Annual Research Report

Research Products

(48 results)

All Other

All Publications (48 results)

  • [Publications] 菅 牧子: "低マッハ数近似による熱対流の数値シミュレーション"日本機械学会論文集 B編. 65. 108-115 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 小紫 誠子: "Formation of a Fire Tornado and Its Breakdown"Theoretical and Applied Mechanics. 48. 349-354 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 河村 哲也: "環境シミュレーションにおける2,3の課題"京都大学数理解析研究所講究録「複雑流体の数理」. 1081. 163-179 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 古屋 久美子: "Numerical simulation of the behavior of water waves in a deforming container"CFD Journal. 9-1(印刷中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 岩津 玲磨: "Toward the Numerical Simulation of Plows Induced by Room Fire"Journal of Physical Society of Japan. 69-4(印刷中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 岩津 玲磨: "円筒容器内渦崩壊に自由表面と固体表面のおよぼす影響についての数値的研究"日本機械学会論文集 B編. (印刷中). (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 河村 哲也: "環境科学入門"インデックス出版. 128 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 河村 哲也 他: "環境工学"インデックス出版(印刷中). 180 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Kan, T. Kawamura and R. Iwatsu: "Numerical simulation of the heat convection by using the low-mach-number"50th Annual Meeting of the Division of Fluid Dynamics APS. Vol. 42, No., 11. 2277 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. KAN, T. KAWAMURA, R. IWATSU: "Numerical Simulation of Thermal Plume Solver"PREPRINTS 16th ICNMFD (International Conference on Numerical Methods in Fluid Dynamics). 265-266 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. KAWAMURA, M. KAN: "Numerical Simulation of Sand Transfer Caused by Fluid Flow"PREPRINTS 16th ICNMFD (International Conference on Numerical Methods in Fluid Dynamics). 267-268 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] K. Furuya, Y. Kawamura, H. Oka and K. Ishii: "Numerical Simulation of the behavior of water waves in a deforming container"Proc. 8th International Symposium on Coputational Fluid Dynamics. (CD-ROM). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Kawamura, T. Yasui and Y. Morohoshi: "Three dimensional numerical simulation of the flow around the rotating Savonius Rotors standing on the fixed base"Proc. 8th International Symposium on Coputational Fluid Dynamics. (CD-ROM). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Kan, T. Kawamura and K. Kuwahara: "Numerical Study of the Interaction between a Pier and a Sand Surface"Proc. 8th International Symposium on Coputational Fluid Dynamics. (CD-ROM). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S. Komurasaki, T. Kawamura and K. Kuwahara: "Thermal Convection in Stratified Fluid"Proc. 8th International Symposium on Coputational Fluid Dynamics. (CD-ROM). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Iwagawa and T. Kawamura: "Numerical Study of the Behavior of the Smoke Emitted form the chimney"Proc. 8th International Symposium on Coputational Fluid Dynamics. (CD-ROM). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Oda, Y. Tamura and T. Kawamura: "Numerical Study of the Blase Waves in a Closed Space"Proc. 8th International Symposium on Coputational Fluid Dynamics. (CD-ROM). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Kawamura and T. Hayashi: "Application of the DDM to the Flow around a Savonius Rotor"Book of abstracts of 12th Int. Conf. Domain Decomposition Method. 43 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] S. Komurasaki, T. Kawamura and K. Kuwahara: "Formation of a Fire Tornado and Its Breakdown"Theoretical and Applied Mechanics. Vol. 48. 331-338 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Iwanaga, T. Kawamura and S. Sirayama: "Numerical Simulation of Advection and Diffusion of the Smoke in Stratified Flow"Theoretical and Applied Mechanics. Vol. 48. 339-348 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Kan, and T. Kawamura: "Numerical Formation of the Barchan Sand Dune"Theoretical and Applied Mechanics. Vol. 48. 349-354 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] R. Iwatsu and H. S. Koyama: "Numerical study of steady axisymmetric vortex breakdown"Proc. 8th International Symposium on Coputational Fluid Dynamics. (CD-ROM). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Ogawa and R. Iwatsu: "Numerical study of vortex breakdown in a cylindrical container with free surface"Proc. 8th International Symposium on Coputational Fluid Dynamics. (CD-ROM). (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] R. Iwatsu and T. Kawamura: "Toward the Numerical Simulation of Flows Induced by Room Fire"Journal of Physical Society of Japan. Vol. 69, No. 4 (in print).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 古屋 久美子: "Numerical simulation of the behavior of waves in a deforming container"CFD Journal. 9-1(印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 織田 友恵: "Numerical Study of the Blast Waves in a Closed Space"Proceedings 8th Int. Symp. Computational Fluid Dynamics. (CD-ROM印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 小川 恭伸: "Numerical study of vortex breakdown in a cylindrical container with free surface"Proceedings 8th Int. Symp. Computational Fluid Dynamics. (CD-ROM印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 小柴 誠子: "Formation of a Fire Tornado and Its Breakdown"Theoretical and Applied Mechanics. 48. 331-338 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 岩津 玲磨: "密閉容器内の軸対称渦崩壊の数値シミュレーション"日本機械学会論文集B編. (印刷中). (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 岩津 玲磨: "Toward the Numerical Simulation of Flows Induced by Room Fire"Journal of Physical Society of Japan. 69-4(印刷中).

    • Related Report
      1999 Annual Research Report
  • [Publications] 河村 哲也: "数値計算の理論と実際"科学技術出版(印刷中). 298 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 河村 哲也 他: "環境工学"インデックス出版(印刷中). 180 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 菅 牧子: "低マッハ数近似による熱対流の数値シミュレーション" 日本機械学会論文集(B編). 65. 108-115 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小紫 誠子: "火災旋風における渦崩壊" 第48回理論応用力学講演会講演論文集. 61-62 (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] 古屋久美子: "変形容器内の水波の挙動の数値シミュレーション" 第11回数値流体学シンポジウム講演論文集. 249-250 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 小紫 誠子: "火災旋風をモデルとした数値計算とその可視化" Computer Visualization Symposium'98 論文集. 33-36 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 菅 牧子: "Numerical Simulation of Thermal Plume Solrer" Preprints 16th International Conference on Numerical Method in Fluid Dynamics. 265-266

    • Related Report
      1998 Annual Research Report
  • [Publications] 河村哲也: "環境シミュレーションにおける2,3の話題" 京都大学数理解析研究所講究録「複雑流体の数理」. (印刷中).

    • Related Report
      1998 Annual Research Report
  • [Publications] 河村哲也: "応用偏微分方程式" 共立出版株式会社, 218 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 河村哲也: "環境科学入門" インデックス出版, 128 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 河村 哲也: "数値流体力学と環境シミュレーション" 理研シンポジウム:スーパーコンピュータと専用計算機における計算科学講演要旨集. 46-54 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小紫 誠子: "鉤型熱源による熱対流の三次元計算" 第2回環境流体シンポジウム講演論文集. 465-466 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 小紫 誠子: "火災旋風の三次元数値シミュレーション" 第11回数値流体力学シンポジウム講演論文集. 491-492 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 管 牧子: "低マッハ数近似にスタガード格子を用いた熱対流の計算" 第11回数値流体力学シンポジウム講演論文集. 505-506 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] M.R.Harston: "Effects of the finite size of the ion (ddu)^+ on the energy levels of the molecules (ddu)e and (ddu) dee" Phys.Rev.A. 56. 2685-2691 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 岩津 玲磨: "円筒容器内過崩壊の数値的研究" 第11回数値流体力学シンポジウム講演論文集. 265-266 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 河村 哲也: "流体解析 II" 朝倉書店, 192 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 河村 哲也: "工系数学講座(10)応用偏微分方程式" 共立出版, 218 (1998)

    • Related Report
      1997 Annual Research Report

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Published: 1997-03-31   Modified: 2016-04-21  

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