With the aim of minimising the losses produced by fire accidents, fire engineering applies physics and engineering principles to preserve the integrity of people, environment and infrastructure. Fire modelling is complex due to the interaction between chemistry, heat transfer and fluid dynamics. Commercially available simulation tools necessarily simplify this complexity, excluding less fundamental processes, such as soot production. By not including this compound in the simulations, the interactions of radiation heat transfer, fire propagation and toxicity must be approximated based on input parameters that are often not well defined. In this work, two semi-empirical soot models are incorporated in the fire dynamics simulator. The models are compared against experimental data. For the operational viability in large-scale scenarios, a correction factor for the local variables is proposed as a function of the cell size, achieving good agreement with experimental data in terms of the amount of soot generated.

中文翻译：

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用于操作计算流体动力学火灾模拟的烟尘生产建模

为了最大限度地减少火灾事故造成的损失，消防工程应用物理学和工程原理来保护人员、环境和基础设施的完整性。由于化学、传热和流体动力学之间的相互作用，火灾建模很复杂。商业上可用的模拟工具必然会简化这种复杂性，不包括不太基本的过程，例如烟尘生产。由于在模拟中不包括这种化合物，辐射传热、火灾传播和毒性之间的相互作用必须根据通常没有明确定义的输入参数进行近似。在这项工作中，两个半经验烟尘模型被纳入火灾动力学模拟器。将模型与实验数据进行比较。对于大规模场景中的操作可行性，