Experimental study on ﬂame merging behaviors from two pool ﬁres along the longitudinal centerline of model tunnel with natural ventilation
- University of Science and Technology of China
and merging vertical ﬂames. The image processing method is used to judge the ﬂame merging and to obtain the position of merging point and the ﬂame length. An expression correlating the distance from the merging point to the ceiling and the normalized spacing is established. By using dimensional analysis and introducing a correlation factor, a correlation for predicting the effective ceiling ﬂame length is developed, involving the heat release rate, pool size, spacing and effective tunnel height. Moreover, a method to estimate the ﬂame radiant ﬂuxes received by the objects located in the lower layer of tunnel with vertical and horizontal orientations is proposed to further reveal the mechanism of heat radiation from two interacting ﬁres in tunnel.
|Julkaisu||Combustion and Flame|
|Tila||Julkaistu - 2016|
|OKM-julkaisutyyppi||A1 Julkaistu artikkeli, soviteltu|