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http://dx.doi.org/10.7731/KIFSE.2019.33.6.009

Analysis of Prediction Results and Grid Size Dependence According to Changes in Fire Area  

Yun, Hong-Seok (Dept. of Disaster Prevention, Daejeon University)
Hwang, Cheol-Hong (Department of Fire and Disaster Prevention, Daejeon University)
Publication Information
Fire Science and Engineering / v.33, no.6, 2019 , pp. 9-19 More about this Journal
Abstract
In fire simulations for building fire safety evaluation, changes in the fire area and grid size can significantly influence the prediction results. Therefore, the effects of area changes of the fire source with identical maximum heat release rates on the prediction results of a compartment fire were investigated. The dependence of the prediction results on the grid size using the identical fire area was also examined. No significant changes were observed in the thermal and chemical characteristics of the fires with variable grid sizes, even though the fire area was changed when six or more grids were set based on the fire diameter. In addition, changes in the fire area caused significant differences in the prediction of major physical quantities associated with available safety egress time (ASET) within a compartment. However, the fire area changes did not considerably influence the overall fire characteristics outside the compartment after reaching a certain distance from the opening.
Keywords
Performance-Based Design (PBD); Fire Dynamics Simulator (FDS); Fire Area; Available Safety Egress Time (ASET); Grid Size;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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