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Wind Tunnel Experiment for the Firebreak Effect and the Influence on Fire Plume by Surface Roughness.

Research Project

Project/Area Number 07455233
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Architectural environment/equipment
Research InstitutionTohoku Institute of Technology

Principal Investigator

SAGA Takeshi  Tohoku Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (50085437)

Co-Investigator(Kenkyū-buntansha) KOSEKI Kimiaki  Tohoku Institute of Technology, Faculty of Engineering, Research Associate, 工学部, 助手 (30118343)
KATURA Hisao  Tohoku Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (30005219)
Project Period (FY) 1995 – 1996
Project Status Completed (Fiscal Year 1996)
Budget Amount *help
¥5,100,000 (Direct Cost: ¥5,100,000)
Fiscal Year 1996: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1995: ¥3,400,000 (Direct Cost: ¥3,400,000)
KeywordsUrban fire / Fire plume / Temperature distribution / Urban wind / Firebreak belt / Surface roughness / Wind tunnel experiment / Similarity law
Research Abstract

In order to discuss the firebreak method and the safety of activities for fire prevention, it is important to clarify the estimative method of temperature of fire plume from burning houses by urban fire.
This paper is to clarify the influence on the temperature distribution of fire plume by surface roughness of buildings and wind velocity.
1. Wind tunnel tests for surface roughness : Wind tunnel tests were conducted using the scale models (reduced scale 1/200 and 1/140) of built-up area which were constructed by the low-rise buildings.
2. A theoretical study of temperature distribution downwind from a plane heat source : The author has attempted to assume a plane source as the experimental model of burning area. Equations for temperature distribution downwind from this heat source were discussed by theoretical consideration and shown as the function of dimensionless temperature (PSI), dimensionless velocity (LAMBDA), Froude number (Fr), and ratio (X/D) of downwind distance (X) to wide (D) of a plane heat source.
3. Wind tunnel tests for surface roughness and temperature distribution of fire plume. : In order to examine the relation between above-mentioned theory and experiment, measurements of temperature and velocity were performed on the scale models of built-up area constructed by the low-rise buildings in a wind tunnel which was placed a square vessel for burning alcohol.
4.Wind tunnel tests for the flow around the scale model of the highrise building in built-up area which were constructed by low-rise buildings.
5. Wind tunnel tests for the firebreak effect and the influence on fire plume by the highrise building in built-up area : The author considered the similarity law of fire plume for a wind tunnel test, and examined the relation between theory and experiments. These similar experiments were satisfied with the validity of the theory.

Report

(3 results)
  • 1996 Annual Research Report   Final Research Report Summary
  • 1995 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] 佐賀武司: "正方形熱源の風下における温度分布 強風下の市街地大火における火災気流に関する基礎的研究" 東北工業大学紀要 I理工学編. 16号. 141-154 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 佐賀武司: "強風時の市街地火災における火災気流に関する研究 面熱源の風下温度分布式に関する理論的考察" 平成8年度日本火災学会研究発表会概要集. 206-209 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 佐賀武司: "強風下の市街地火災における火災気流に関する基礎的研究その1 面熱源の風下温度分布式に関する理論的考察" 日本建築学会東北支部研究報告集. 第59号. 143-146 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 佐賀武司: "強風下の市街地火災における火災気流に関する基礎的研究その2 面熱源の風下温度分布式に関する実験的検証" 日本建築学会東北支部研究報告集. 第59号. 147-152 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 佐賀武司: "強風下の市街地火災における火災気流に関する研究 面熱源の風下温度分布式に関する理論的考察" 1996年度日本建築学会大会学術講演梗概集. 171-172 (1996)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 佐賀武司: "強風下の市街地火災における火災気流に関する基礎的研究 面熱源の風下温度分布式に関する理論的考察" 掲載予定 日本火災学会論文報告集. 46. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Takeshi Saga: "Temperature Distribution Downwind from a Square Heat Source. Study on flame of big fire in urban area under strong wind" MEMOIRS OF THE TOHOKU INSTITUTE OF TECHNOLOGY Ser.I : Science and Engineering. No.16. 141-154 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Takeshi Saga: "Study on Flame of Big Fire in Urban Area under Strong Wind. A Theoretical Study of Temperature Distribution Downwind from A Plane Heat Source" PROCEEDING OF FIRE SCIENCE AND ENGINEERING RESEARCH MEETINGS,1996, JAPANESE ASSOCIATION OF FIRE SCIENCE AND ENGINEERING. 206-209

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Takeshi Saga: "Study on Flame of Big Fire in Urban Area under Strong Wind. Part 1. A Theoretical Study of Temperature Distribution Downwind from A Plane Heat Source" PROCEEDING OF THE 59th ARCHITECTURAL RESEARCH MEETINGS,1996, TOHOKU CHAPTER,ARCHITECTURAL INSTITUTE OF JAPAN. 143-146

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Takeshi Saga: "Study on Flame of Big Fire in Urban Area under Strong Wind. Part 2. Experimental Study of Temperature Distribution Downwind from A Plane Heat Source" PROCEEDING OF THE 59th ARCHITECTURAL RESEARCH MEETINGS,1996, TOHOKU CHAPTER,ARCHITECTURAL INSTITUTE OF JAPAN. 147-152

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] Takeshi Saga: "Study on Flame of Big Fire in Urban Area under Strong Wind. A Theoretical Study of Temperature Distribution Downwind from A Plane Heat Source" SUMMARIES OF TECHNICAL PAPERS OF ANNUAL MEETING ARCHITECTURAL INSTITUTE OF JAPAN. 171-172 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1996 Final Research Report Summary
  • [Publications] 佐賀武司: "正方形熱源の風下における温度分布 強風下の市街地大火における火災気流に関する基礎的研究" 東北工業大学大学紀要 I理工学編. 16号. 141-154 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 佐賀武司: "強風時の市街地火災における火災気流に関する研究 面熱源の風下温度分布式に関する理論的考察" 平成8年度日本火災学会研究発表会概要集. 206-209 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 佐賀武司: "強風下の市街地火災における火災気流に関する基礎的研究その1 面熱源の風下温度分布式に関する理論的考察" 日本建築学会東北支部研究報告集. 第59号. 143-146 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 佐賀武司: "強風下の市街地火災における火災気流に関する基礎的研究その2 面熱源の風下温度分布式に関する実験的検証" 日本建築学会東北支部研究報告集. 第59号. 147-152 (1996)

    • Related Report
      1996 Annual Research Report
  • [Publications] 佐賀武司: "正方形熱源の風下における温度分布 強風下の市街地大火における火災気流に関する基礎的研究" 東北工業大学紀要I理工学編. 16号. 141-154 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 佐賀武司: "強風時の市街地火災における火災気流に関する研究 面熱源の風下温度分布に関する理論的考察" 平成8年度日本火災学会研究発表会概要集. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 佐賀武司: "強風下の市街地火災における火災気流に関する基礎的研究 その1 面熱源の風下温度分布式に関する理論的考察" 日本建築学会東北支部研究報告集. 第59号. (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 佐賀武司: "強風下の市街地火災における火災気流に関する基礎的研究 その2 面熱源の風下温度分布式に関する実験的検証" 日本建築学会東北支部研究報告集. 第59号. (1996)

    • Related Report
      1995 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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