有風下における建物周囲に形成される火炎性状 —立方体模型を用いた実験に基づく火災性状モデル—

大宮 喜文; 林 吉彦; 岩見 達也

doi:10.14887/kazekosymp.Symp17.0.31.0

PROCEEDINGS OF 17th NATIONAL SYMPOSIUM ON WIND ENGINEERING

DOI https://doi.org/10.14887/kazekosymp.Symp17.0.31.0

Conference information

Host: Science Council of Japan

Co-host: Architectural Institute of Japan, Japan Association for Wind Engineering, The Institute of Electrical Engineering of Japan, Japan Society of Steel Construction, Japan Society of Civil Engineering, Meteorological Society of Japan

FLAME BEHAVIOR FORMED AROUND A BUILDING UNDER WIND

-Flame behavior model based on experiment result using a cubic model-

Yoshifumi Ohmiya, Yoshihiko Hayashi, Tatsuya Iwami

Author information

Keywords: Compartment Fire, Flame, Froude NO., Dimensionless heat release rate

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 31

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Abstract

The purpose of this study is to investigate the properties of flames formed around a building under external wind. An experimental study is described using a small-scale enclosure having a prescribed fire source to investigate the behavior of flames emerging from an opening and ceiling of the enclosure at steady state conditions. The fire source in the enclosure was a propane porous gas burner and wood crib. In the experiment, the width and height of the opening, the discharge rate of propane gas supplied to the gas burner, wind velocity and direction to compartment were varied. The modeling of flame length, vertical height and angle are proposed to judge risk fire spread between buildings under the wind condition.

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