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Fire Sci. Eng. > Volume 26(1); 2012 > Article
Journal of Korean Institute of Fire Science and Engineering 2012;26(1):31-37.
DOI: https://doi.org/10.7731/KIFSE.2012.26.1.031    Published online February 28, 2012.
주거용 건축물의 화염전파 현상에 대한 수치해석적 검토
안찬솔, 김흥열, 유용호, 김형준
1한국건설기술연구원2한국건설기술연구원3한국건설기술연구원4한국건설기술연구원
A Numerical Analysis for Fire Spread Mechanism of Residential Building Fire
Ahn Chan-Sol, Kim Heung-Youl, You Yong-Ho, Kim Hyung-Jun
요약
본 연구는 주거용 건축물의 열역학적 수치해석모델을 검토하는데 목적이 있다. 화재하중과 화재강도는 성능설계의 사용이 증가함에 따라 건축물 화재안전 설계에 중요한 요소으로 대두되고 있으며, 컴퓨터 성능의 발전으로 수치해석을 통한 예측이 가능해 지고 있다. 주거 가연물의 연소특성을 예측하기 위해 각가연물의 수치해석용 모델을 설계하였다. 해석된 결과를 검증하기 위해 수치해석의 결과를 실물 화재실험의 결과와 비교하였다. 수치해석을 위해 FDS5를 사용하였으며, 난류해석을 위해 LES모델이 적용하였다. 검증결과 화염전파 현상 및 온도곡선은 실험결과와 정성적으로 잘 일치함을 확인하였다.
Abstract
This study is intended to present a computational thermal model for a residential building. As the Performance Based Design is more popular, fire-intensity and fire-load have turned out to be very important factors for building design and can be predicted through some computational work. To predict and estimate the fire properties of a residential fire, we made some numerical models of combustibles and residential building. In a bid to validate the estimate values, computational analysis results from numerical models were compared with real fire tests. For computational analysis, the Fire Dynamics Simulator (FDS) was used with Large Eddy Simulation (LES) model for turbulence. Consequently, fire-intensity was well predicted and flash-over of rooms were successfully estimated.
Key Words: Residential building, Real scale fire test, Numerical modeling, Fluid dynamics simulator


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