CFD PREDICTION OF POOL FIRE BURNING RATES AND FLAME FEEDBACK
CFD PREDICTION OF POOL FIRE BURNING RATES AND FLAME FEEDBACK
复制标题
池火燃烧速率和火焰反馈的 CFD 预测
DOI：
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
H. Koseki
中科院分区：
文献类型：
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作者：
V. Novozhilov;H. Koseki
开发了气相和液相之间完全耦合的计算流体动力学模型，用于预测中小型水池火灾的燃烧速率。使用对池表面的火焰反馈的预测来计算燃料释放率。求解法夫尔平均纳维-斯托克斯方程来描述气相流动。使用涡流破碎模型描述碳氢化合物燃烧。求解具有回归表面的区域中的热传导方程来模拟液体蒸发。池火被建模为一个不稳定的过程，从点火到收敛到准稳态燃烧速率。与文献中报道的许多实验进行了比较，包括不同燃料的燃烧速率，以及燃烧表面的总火焰和辐射火焰反馈。
A computational fluid dynamic model with full coupling between gaseous and liquid phases is developed to predict burning rates of small- to medium-size pool fires. Rates of fuel release are calculated using predictions of flame feedback to the surface of the pool. Favre-averaged Navier–Stokes equations are solved to describe flow in the gaseous phase. Hydrocarbon combustion is described using an eddy breakup model. The heat conduction equation in the region with a regressing surface is solved to model liquid vaporization. A pool fire is modeled as an unsteady process, from the time of ignition until convergence to a quasi-steady burning rate. Comparisons are made to a number of experiments reported in the literature and include burning rates for different fuels, as well as total and radiative flame feedback to the burning surface.