Numerical Simulation of Real Tunnel Fire Under No Ventilation Velocity
محل انتشار: سومین همایش ملی تهویه و بهداشت صنعتی
سال انتشار: 1391
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,487
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شناسه ملی سند علمی:
NIVHC03_035
تاریخ نمایه سازی: 13 اسفند 1391
چکیده مقاله:
Numerical study is performed using Large Eddy Simulation (LES) to investigate the heat and toxic gases released from fires in real tunnels. Due to catastrophic disasters about tunnel fires in previous years, it is, indeed, attracts increasing attention of researchers to create safe designs. All underground constructions should include a proper ventilation system, but to optimize the locations and the ventilation velocities, it is desired to explore the behavior of flow induced by fire for no ventilation at first. In this research, a real tunnel of 600 meter length with a 10 MW fire at the middle is simulated using FDS (Fire Dynamic Simulator). After validation of numerical results with theoretical relations, CO and temperature profiles are plotted to explore the dangerous locations. It is shown that tunnel's exit floor has CO concentration 3 times larger than near fire
کلیدواژه ها:
نویسندگان
Atta Sojoudi
M.Sc Student, Department of mechanical
Hossein Afshin
Assistant Professor, Department of mechanical
Bijan Farhanieh
Professor, Department of mechanical