경사에 따른 화염각 변화와 지표 화염 확산에 관한 연구 - 무풍조건 기반 - = A Study on the Flame Tilt and Flame Spread due to Up-slope on the Surface Fuel Bed - No wind condition -

다국어 초록 (Multilingual Abstract)

Flame spread velocity to virgin surface fuel bed on a ground slope increases as the flame gets closer to the slope according to the change of a ground slope angle. The existing studies have generally adopted the theory that flame gets closer to the slope as the slope angle increases, without considering the change of flame tilt against the slope. In this study, experiments were made on the actual characteristics of the flame on slopes of various angles, and as a result, this study offers the flame tilt equation according to the slope angle, and derive correlation between flame tilt and flame spread velocity on slope conditions.

국문 초록 (Abstract)

경사면에서의 지표 연소물질에 대한 화염확산은 경사각변화에 따라 화염이 경사면과 가까워져 열전달이 많이 이루어져 확산이 빠르게 이루어진다. 기존 연구에서는 경사면에 대한 화염각 변화를 고려하지 않고 일반적으로 경사각의 기울어짐으로 인해 화염이 그 만큼 지표면과 가까워지는 것을 적용하였다. 따라서 본 연구에서는 경사면에서의 실제 화염의 성상에 대해 실험하였다. 그 결과 경사에 따른 화염기울기 산정식을 제안 하였고 경사조건에서의 화염기울기와 화염확산속도와의 관계에 대해 기술하였다.

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