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題名:NUMERICAL STUDIES ON AN ACCIDENTAL FLASHFIRE AT A WATER FUN PARK BY FLACS SOFTWARE
作者:Hsin Hsiu Ho, San Ping Ho, Chin Feng Chen, Hui Pei Chang, Bin Xie, Chi Honn Cheng, Wan Ki Chow
期刊名稱:THERMAL SCIENCE
發表頁數:pp1721-1732
發表年份:2021
發表月份:11
摘要:A severe accidental fire with ‘explosion’ resulting from spraying colored corn flour powder occurred at a water fun park in Taiwan. The possible fire scenari- os were studied in this paper using flame acceleration simulator (FLACS). En- vironmental conditions including wind action and solid boundary conditions were deduced based on government fire investigation and video records, and were used as the input parameters in simulation. Simulation results indicate that upon ignition of the sprayed powder, the maximum overpressure in the open space was only 0.03 bar gauge, with a dust flash fire generated without having an explosion. These environmental conditions or parameters and the simulation results together would give a fire scene that agrees with the accident observed, indicating that appropriate environmental parameters had been iden- tified. Therefore, CFD simulation with carefully selected parameters can be used to reproduce explosion scenarios and to identify key factors in supporting accident investigations.
關鍵字:
英文關鍵字:accident investigation, CFD model, corn flour dust, explosion, environmental conditions
DOI:https://doi.org/10.2298/TSCI200718304H
Vol:Vol.26
ISSN:2334-7163 (online edition)
全文下載:未授權提供下載
Mail:peipei@mail.cjcu.edu.tw