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A MIXTURE FRACTION COMBUSTION MODEL FOR LARGE SCALE FIRE MODELING

机译:大型火灾建模的混合分数燃烧模型

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摘要

A numerical fire model, Fire Dynamics Simulator (FDS), is being developed at NIST to study fire behavior and to evaluate the performance of fire protection systems in buildings. To date, about half of the applications of the model have been for de-sign of smoke handling systems and sprinkler/detector activation studies. The other half consists of residential and industrial fire reconstructions. Improvements are being made to address the aecond set of applications, most importantly a mixture fraction combustion model and a finite volume radiation transport algo-rithm using either a gray gas or a wide band assumption. The methods will be discussed and a sample calculation presented.
机译:NIST正在开发一种数值火灾模型,即火灾动态模拟器(FDS),以研究火灾行为并评估建筑物中消防系统的性能。迄今为止,该模型的大约一半应用已用于烟雾处理系统的设计和洒水器/检测器激活研究。另一半包括住宅和工业火灾的重建。正在进行改进以解决第二组应用,最重要的是使用灰气体或宽带假设的混合分数燃烧模型和有限体积辐射传输算法。将讨论这些方法并提供示例计算。

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