島根農科大学
ISSN:0559-8311
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島根農科大学研究報告 11
1963-01-31 発行
山火事燃焼機構の研究(第2報) : 不連続な材料の延焼性と密度との関係
Studies on the Combustive Mechanism of Forest Fires(2) : On the Relations between Density and Flame Advancement in Fires of Discontinuous Combustibles
中村 貞一
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As a part of his studies on the relations between fuel density and flame advancement of fires, the author reports, in this paper, a series of model combustion experiments. He prepared model woodbelts, made of paper straws, disposed regularly on a asbestine board in a proposed density ranging from 0.89 to 4.5 stalk/<cm>^2. He kindled it and measured average fire advancing velocity of each model. A fuel-density～fire-advancing-velocity curve is shown in Fig. 3. It reveals that the most advancing velocity will be seen at the moderate density of straw stalks, and that it will decline sharply in the lower density, due to hindrance in spreading fires.
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