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首页> 外文期刊>Journal of Fire Protection Engineering >Modeling fan-driven flows for firefighting tactics using simple analytical models and CFD
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Modeling fan-driven flows for firefighting tactics using simple analytical models and CFD

机译:使用简单的分析模型和CFD对风扇驱动的消防策略进行建模

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摘要

Airflow control has become a large part of the tactical toolbox that firefighters use to combat fires. Control of airflow requires managing the impact of environmental condi tions (i.e., wind) and optimally using mechanically generated flows from fans to drive air and combustion products through predetermined vents. This article discusses the ability of analytical and computational models to predict flow variables associated with the use of positive pressure ventilation. To make these predictions, it is shown that various levels of approximation and a knowledge of (the often neglected) structure leakage rates are required. This study details experiments and simulations of airflow rates associated with fan-induced pressure differences between the environment and a structure.
机译:气流控制已成为消防员用于扑灭火灾的战术工具箱的重要组成部分。气流的控制需要管理环境条件(即风)的影响,并最好利用风扇的机械产生的气流来驱动空气和燃烧产物通过预定的通风孔。本文讨论了分析和计算模型预测与正压通风相关的流量变量的能力。为了进行这些预测,表明需要各种近似值和对(通常被忽略的)结构泄漏率的了解。这项研究详细介绍了与风扇引起的环境和结构之间的压差有关的气流速率的实验和模拟。

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