Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study of Numerical Reproducibility for the Backdraft Phenomena in a Compartment using the FDS

FDS를 이용한 구획실 백드래프트 현상의 수치적 재현성에 관한 연구

  • Park, Ji-Woong (Department of Safety Engineering, Pukyong National University) ;
  • Oh, Chang Bo (Department of Safety Engineering, Pukyong National University) ;
  • Choi, Byung Il (Department of Energy Plant Safety, Korea Institute of Machinery and Materials) ;
  • Han, Yong Shik (Department of Energy Plant Safety, Korea Institute of Machinery and Materials)
  • 박지웅 (부경대학교 안전공학과) ;
  • 오창보 (부경대학교 안전공학과) ;
  • 최병일 (한국기계연구원 에너지플랜트안전연구실) ;
  • 한용식 (한국기계연구원 에너지플랜트안전연구실)
  • Received : 2013.06.02
  • Accepted : 2013.10.17
  • Published : 2013.10.31
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Abstract

A numerical reproducibility of the backdraft phenomena in a compartment was investigated. The prediction performance of two combustion models, the mixture fraction and finite chemistry models, were tested for the backdraft phenomena using the FDS code developed by the NIST. The mixture fraction model could not predict the flame propagation in a fuel-air mixture as well as the backdraft phenomena. However, the finite chemistry model predicted the flame propagation in the mixture inside a tube reasonably. In addition, the finite chemistry model predicted well the backdraft phenomena in a compartment qualitatively. The flame propagation inside the compartment, fuel and oxygen distribution and explosive fire ball behavior were well simulated with the finite chemistry model. It showed that the FDS adopted with the finite chemistry model can be an effective simulation tool for the investigation of backdraft in a compartment.

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References

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