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http://dx.doi.org/10.7842/kigas.2012.16.5.58

CFD Simulation Study to analyze the Dispersion and Explosion of Combustible Gas  

Jang, Chang-Bong (Korea Occupational Safety and Health Agency)
Lee, Hyang-Jik (Korea Occupational Safety and Health Agency)
Lee, Min-Ho (Korea Occupational Safety and Health Agency)
Min, Dong-Chul (UIT Co., Ltd.)
Back, Jong-Bae (Dept. of Safety Engineering, Korea National University of Transportation)
Ko, Jae Wook (Dept. of Chemical Engineering, Kwangwoon University)
Kwon, Hyuck-Myun (Korea Occupational Safety and Health Agency)
Publication Information
Journal of the Korean Institute of Gas / v.16, no.5, 2012 , pp. 58-65 More about this Journal
Abstract
Various models are currently applied to predict the dispersion of leaked combustible gas and overpressure from a vapor cloud explosion(VCE). However, those models use simple approaches where topography and barriers of anti-leakage facilities and the effects of buildings were not sufficiently taken into considerations. For this reason, this study has proposed the dispersion process of leaked gas, distribution patterns, and flames and overpressure generated from gas explosions in 2D and 3D virtual spaces by reviewing more accurately analyzable computational fluid dynamics (CFD) model by considering various variables including combustion types of leaked substances, geometry of facility, warm currents, barriers, the influence of wind, and others. The CFD analysis results are anticipated to be usefully applied for the risk analysis of explosion and for the risk-based design.
Keywords
VCE(vapor cloud explosion); CFD(computational fluid dynamics); risk analysis;
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  • Reference
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