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Journal of Korean Institute of Fire Science and Engineering 2010;24(2):114-119.
Published online April 30, 2010.
부산 실내사격장 화재 I. 화재재현
부경대학교 안전공학부
Fire at an Indoor Shooting Range in Busan I. Fire Reconstruction
Park Woe-Chul
2009년 11월14일의 부산 실내사격장 화재에서 짧은 시간에 많은 인명피해가 발생한 원인을 조사하기 위해 화재 시뮬레이션용 전산유체역학 모델을 사용하여 화재를 재현하였다. 화재 시뮬레이션으로부터 얻은 화염과 연기의 확산 및 온도분포의 변화과정을 CCTV 녹화를 토대로 한 화재조사 결과와 비교하였다. 사격실 내에서 흡음재 연소가 급격히 이루어져 화염과 연기가 출입문을 통해 분출되기 시작한지 3초 내에 휴게실에 가득 차는 것으로 나타났고, 이 결과는 CCTV 녹화와 거의 일치하였다. 따라서 휴게실에 있던 사람들의 대피가능시간이 부족했음이 확인되었다. 또 사격실 출입문의 원형 손잡이의 온도가 거의 $1400^{circ}C$까지 올라가는 것으로 나타나 원형 손잡이가 용융할 수 있음을 알 수 있었다.
The fire at a Busan indoor shooting range on November 14, 2009 was reconstructed by using a computational fluid dynamics model for fire simulations, in order to investigate the cause of the heavy death toll in a short period of time. Spread of the flame and smoke, and temperature distribution obtained by fire simulation were compared with the results of fire investigation based on the CCTV recordings. The flame and smoke flew out violently through the door into the cafeteria from the shooting range, and the cafeteria was filled with smoke just within 3 seconds followed by the onset of fire. This is consistent with the CCTV recordings. It was confirmed, as a result, that people in the cafeteria did not have enough evacuation time. The computed temperature at the door knob reached about $1400^{circ}C$, near its melting point.
Key Words: Shooting range fire, Fire reconstruction, Fire simulation, Computational fluid dynamics
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