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Research on development of Simulator on Behavior of Thermal Prume and Smoke at Tunnel Fires

Research Project

Project/Area Number 13650172
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Fluid engineering
Research InstitutionFukui University

Principal Investigator

KAWABATA Nobuyoshi  Faculty of Engineering, professor, 工学部, 教授 (90126631)

Project Period (FY) 2001 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2002: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2001: ¥1,900,000 (Direct Cost: ¥1,900,000)
KeywordsTunnel Fire / Thermal Prume / Smoke / Evacuation Environment / Ventilation Control / Backlayering Characteristics / トンネル換気 / 火災プルーム / LES解析
Research Abstract

I have developed the simulator with high reliability that substitutes for the tunnel fire experiment. The purpose of this research is to make this simulator efficient further. The improvement of the predictability was researched. The experimental results were compared with the simulation, and an appropriate range of the model constant of the simulator was clarified. Next, the guess methods of the heat release ratio and smoke generation ratio which are important input conditions that controls the simulation result, were examined from comparisons between experiments and simulations. As the result, it is appropriate to assume them to be a change proportional to tim*arying of the maximum temperature in the vicinity of the heat radiation and the source from the source. And, it was confirmed that these model constants and input conditions were applied, and it is confirmed that the flow structure of the fire plume by the simulation agree with the experiment very well. The backlayering characteristics (longitudinal velocity, backlayering distance) of the fire prume which are extremely important characteristics for longitudinal ventilation tunnel, was examined with this simulator. As a result, the influence of congestion vehicles and the influence of the longitudinal inclination were clarified. It was clarified that the backlayering distance shortens by the existence of congestion vehicles.

Report

(3 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] Y.Kunikae, N.Kawabata, K.Takekuni, A.Shimoda: "Thermal Fumes and Smoke Induced by Bus Fire Accident in Large Cross Sectional Tunnel"Proceedings of the 5th JSME-KSME Fluids Engineering Conference. 294-299 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Kunikae, N.Kawabata, K.Takekuni, A.Shimoda: "HEAT RELEASE RATE INDUCED BY GASOLINE POOL FIRE IN A LARGE-CROSS-SECTION TUNNEL"Proceedings of the 4th International Conference of Tunnel Fires. 387-396 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] N.Kawabata, Y.Kunikae, N.Yamamoto, K.Takekuni, A.Shimoda: "Numerical Simulation of Smoke Dscent in a Tunnel Fire Accident"Proceedings of the 4th International Conference of Tunnel Fires. 357-366 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 國兼, 川端, 竹國, 下田: "大断面トンネルにおける火災熱気流と煙の遡上特性"土木学会 地下シンポジウム論文・報告集. 8. 217-224 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 國兼, 川端, 竹國, 下田: "大断面トンネルにおけるガソリン火皿火災時の発熱速度の検討"日本機械学会論文集(B編). (掲載決定). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Kunikae, N.Kawabata, K.Okubo, A.Shimoda: "Behavior of Fire Plume in a Large Cross Sectional Tunnel"Proceedings of the 11th International Symposium on Aerodynamics and Ventilation of Vehicle Tunnel. (発表決定). (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Kunikae, N.Kawabata, K.Takekuni, A.Shimoda: "Thermal Fumes and Smoke Induced by Bus Fire Accident in Large Cross Sectional Tunnel"Proceedings of the 5th JSME-KSME Fluids Engineering Conference. 294-299 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Kunikae, N.Kawabata, K.Takekuni, A.Shimoda: "HEAT RELEASE RATE INDUCED BY GASOLINE POOL FIRE IN A LARGE-CROSS-SECTION TUNNEL"Proceedings of the 4th International Conference of Tunnel Fires. 387-396 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] N.Kawabata, Y.Kunikae, N. Yamamoto, K.Takekuni, A.Shimoda: "Numerical Simulation of Smoke Dscent in a Tunnel Fire Accident"Proceedings of the 4th International Conference of Tunnel Fires. 357-366 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y.Kunikae, N.Kawabata, K.Okubo, A.Shimoda: "Behavior of Fire Plume in a Large Cross Sectional Tunnel"Proceedings of the 11th International Symposium on Aerodynamics and Ventilation of Vehicle Tunnel. (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] NobuyoshiKAWABATA, YukoKUNIKANE, KazuyaTAKEKUNI, AkifumiSHIMODA: "Numerical Simulation of Smoke Descent in a Tunnel Fire Accident"Proceedings of the Fourth International Conference Tunnel Fires. 357-366 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] YukoKunikane, NobuyoshiKAWABATA, KazuyaTAKEKUNI, AkifumiSHIMODA: "HEAT RELEASE RATE INDUCED BY GASOLINE POOL FIRE IN A LARGE-CROSS-SECTION TUNNEL"Proceedings of the Fourth International Conference Tunnel Fires. 387-396 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] YukoKunikane, NobuyoshiKAWABATA, TakujiISHIKAWA, KazuyaTAKEKUNI, AkifumiSHIMODA: "Thermal Fumes and Smoke Induced by Bus Fire Accident in Large Cross Sectional Tunnel"Proceedings of the Fifth KSME-JSME Fluids Engineering Conference. 294-299 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 國兼裕子, 川端信義, 竹國久也, 下田哲史: "大断面トンネルにおける火災熱気流と煙の遡上特性"土木学会 地下空間利用シンポジウム論文・報告集. 18. 217-224 (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] 山本展之, 川端信義, 國兼裕子, 竹國久也, 下田哲史: "トンネル内火災時の煙の降下に関する数値シミュレーション"日本火災学会研究発表解概要集. 104-107 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 國兼裕子, 川端信義, 竹國久也, 下田哲史: "大断面トンネルにおける火災熱気流と煙の挙動シミュレーション"日本火災学会研究発表会概要集. 96-99 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2001-04-01   Modified: 2016-04-21  

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