Fire Technology 2018 Springer Science+Business Media, LLC, part of Springer Nature. Manufactured in The United States https://doi.org/10.1007/s10694-018-0740-0 Experimental Study on Downslope Fire Spread over a Pine Needle Fuel Bed Zhuo Yang, Hongmin Zhang, Linhe Zhang, and Haixiang Chen* , State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei 230026 Anhui, People’s Republic of China Received: 5 February 2018/Accepted: 24 May 2018 Abstract. The downslope ﬁre represents a percentage of wildland ﬁreline while the heat transfer mechanism of this process is poorly understood. In this study, the experiments were carried out in a fuel bed of dead pine needles with the slopes of - 30, - 20, - 10 and 0 for 0.4 and 0.8 kg/m fuel loads. Flame length, ﬂame angle, temperatures over the fuel bed, ﬂow speed at the fuel bed surface, radiation heat ﬂux near the end of the fuel bed were measured. The rate of spread shows a parabolic shape which decreases ﬁrstly and then increases from 0 to - 30. The combustion interface, reconstructed from the temperature histories of two vertical thermocouples, was perpendicular to the fuel bed under all slope conditions for two fuel loads. The measured radiation heat
Fire Technology – Springer Journals
Published: Jun 6, 2018
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