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Fire behavior modeling based on simulated Held Plots

机译:基于模拟持有图的防火行为建模

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The objective of this research was to develop and adjust fire behavior models based on simulated field plots methodology. The experiment was carried out at the Canguiri Experimental Farm, owned by the Federal University of Parana, located in Pinhais County, Parana State, Brazil. Twenty two plots, measuring 2.0 x 6.0 m, were assembled using pine tree tops (1.8 to 2.0 m high) standing in the ground, in order to simulate natural field conditions. Fuel load (2.0 kg.m~(-2) of dry needles), layer thickness (16 cm), and fuel disposal (homogeneously distributed) were pre-determined. During the burns wind speed, air temperature, and relative humidity were monitored. Fire propagation along the plots produced rate of spread varying from 0.003 to 0.061 m.s~(-1), flame heights between 0.75 to 5.63 m, and fire intensity from 30.19 to 582.22 kcal.m~(-1).s~(-1). The results allowed the development and adjustment of models to estimate fire front intensity based on flame height and wind speed, and models to estimate the rate of spread based on flame height, wind speed, and relative humidity.
机译:本研究的目的是基于模拟场绘图方法制定和调整火灾行为模型。该实验在Canguii实验农场进行,由Parana of Parana县,巴西Parana县的联邦ParaNa大学拥有。二十两块图,测量2.0 x 6.0米,使用松树顶部(1.8至2.0米高)站立在地面,以模拟自然场地条件。燃料载荷(2.0kg.m〜(-2)的干针),层厚度(16cm)和燃料处理(均匀分布)被预先确定。在烧伤时,监测风速,气温和相对湿度。沿着地块的火焰传播产生的速率从0.003到0.061 ms〜(-1),火焰高度在0.75至5.63米之间,火力强度为30.19至582.22 kcal.m〜(-1).s〜(-1 )。结果允许开发和调整模型以基于火焰高度和风速来估计火灾前照强度,以及基于火焰高度,风速和相对湿度来估计扩散速率的模型。

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