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http://dx.doi.org/10.7731/KIFSE.2012.26.5.067

Selection of Grid Size in Fire Simulation for Large Scale Buildings by Using FDS  

Park, Woe-Chul (Dept. of Fire Protection Engineering, College of Engineering, Pukyong National University)
Publication Information
Fire Science and Engineering / v.26, no.5, 2012 , pp. 67-72 More about this Journal
Abstract
Fire simulation was carried out for an enclosure with three doorways of $20{\times}10{\times}3m^3$ and a cleanroom of $44{\times}48{\times}10m^3$, to suggest appropriate grid size in fire simulations by using of FDS for large scale buildings. The variations of temperature and visibility with time were compared for the x and y direction grid sizes of 0.1~1.0 m (aspect ratios 0.5~5.0), fixing the z direction grid size 0.2 m. The results showed that the grid sizes 0.5 m (aspect ratio 2.5) or smaller are appropriate among the grid sizes tested, whereas 1.0 m is not acceptable. It was confirmed that estimate of the available safe egress time requires a great care due to fluctuations in temperature, visibility, etc., and further investigations on the grid size when selecting a large grid size inevitable, and on the aspect ratios for a larger grid are in need.
Keywords
Fire simulation; Grid size; Fire Dynamics Simulator (FDS); Performance-based design;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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