Analysis of a Wildfire and Smoke Propagation Model at Chiak Mountain Using Computational Fluid Dynamics

This study analyzed the arrival time and diffusion pattern of a wildfire at Chiak Mountain, Wonju, Korea. Simcenter STAR-CCM+, which is computational fluid dynamics program, was used to analyze flow fields generated by mountain topography create combustion model. The size area under 16 km², ignition conducted first campsite. Approximately six million mesh were generated. temperature propagation soot for 1 h after simulation started. Implicit unsteady analysis time-dependent diffusion, molecular diffusivity field analysis. results as follows. 1) spread affected stack effect derived from wind direction topography. 2) 22 min required campground western point 500 m away, average 1,200 ℃ or higher. 3) caused difference between flash points became faster over time.