FIRETEC: A transport description of wildfire behavior
FIRETEC: A transport description of wildfire behavior
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FIRETEC：野火行为的运输描述
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
F. Harlow
中科院分区：
文献类型：
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作者：
R. Linn;F. Harlow
野火对人类生命和财产构成威胁，但它们是自然不可避免的一部分，在某些情况下，它们对于森林的自然维护和进化是必要的。五十多年来，调查人员一直试图描述野火的行为（速度、方向、蔓延模式）。当前的数值描述模型主要是代数模型，并且基于统计或经验思想。相比之下，作者描述了一种名为 FIRETEC 的传输模型，它是一种自我决定的火灾行为模型。输运公式的使用将传播速率与能量、动量、物质浓度、质量和湍流的完整守恒方程联系起来。在本文中，描述了模型公式和结果的要点。 FIRETEC 模型的目标是描述气体和燃料的平均行为。它代表了许多小规模流程组合的本质，而没有详细解决每个流程。 FIRETEC 模型被实施为计算机代码，用于检查平行于前进方向的垂直空间切割中的线火传播。通过此代码，作者能够检查风效应、坡度效应和非均匀燃料分布的影响。
Wildfires are a threat to human life and property, yet they are an unavoidable part of nature and in some instances they are necessary for the natural maintenance and evolution of forests. Investigators have attempted to describe the behavior (speed, direction, modes of spread) of wildfires for over fifty years. Current models for numerical description are mainly algebraic and based on statistical or empirical ideas. The authors describe, in contrast, a transport model called FIRETEC, which is a self-determining fire behavior model. The use of transport formulations connects the propagation rates to the full conservation equations for energy, momentum, species concentrations, mass, and turbulence. In this text, highlights of the model formulation and results are described. The goal of the FIRETEC model is to describe average behavior of the gases and fuels. It represents the essence of the combination of many small-scale processes without resolving each process in complete detail. The FIRETEC model is implemented into a computer code that examines line-fire propagation in a vertical spatial cut parallel to the direction of advancement. With this code the authors are able to examine wind effects, slope effects, and the effects of nonhomogeneous fuel distribution.