한국화재소방학회:학술대회논문집 (Proceedings of the Korea Institute of Fire Science and Engineering Conference)

한국화재소방학회 (Korean Institute of Fire Science and Engineering)
권호 표지

스프링클러 분무 해석에 영향을 미치는 통계적액적군집의 영향

Effect of the Statistical Droplet Parcel on Numerical Simulation of Sprinkler Spray

  • 김성찬 (경일대학교 소방방재학부) ;
  • 이상우 (경일대학교 소방방재학부) ;
  • 박원주 (경일대학교 소방방재학부)
  • Kim, Sung-Chan (School of Fire and Disaster Prevention, Kyungil University) ;
  • Lee, Sang-Woo (School of Fire and Disaster Prevention, Kyungil University) ;
  • Park, Won-Ju (School of Fire and Disaster Prevention, Kyungil University)
  • 발행 : 2008.11.13
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초록

The present study has been performed to investigate the effect of statistical number of droplets on the simulation of the sprinkler spray using fire field model. In order to simulate the sprinkler spray characteristics, the present study uses NIST Fire Dynamics Simulator version 5.2. A group of Lagrangian particle with similar droplet characteristics, such as diameter, velocity, temperature and so on, is represented by parcel concept to decrease the total number of droplets tracked in the simulation. The present study introduces a new parameter to represent the ratio between real number of droplets and computational parcels. The dependency of the number of parcels on the fire suppression characteristics and spray patterns is quantitatively examined for different ratio between the real number of droplets and computational parcels.

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