This paper investigated ceiling temperature profile induced by double pool fires in a tunnel. A series of small-scale experiments and fire dynamics numerical simulations have been carried out with different fire sizes and fire spacing. The results showed that the longitudinal ceiling temperature distribution falls into exponential decays, and the experimental data is higher than Delichatsios's model. Based on this, a new correction is proposed by introducing fire size and fire spacing to predict the longitudinal ceiling temperature decay. The proposed model can provide well prediction to present work and previous related data.

中文翻译：

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隧道双水池火灾引起的顶棚纵向温度分布研究

本文研究了隧道中双水池火灾引起的天花板温度曲线。在不同的火势和火距下，进行了一系列的小规模实验和火动力学数值模拟。结果表明，天花板的纵向温度分布呈指数衰减，实验数据高于Delichatsios模型。在此基础上，提出了一种新的修正方法，即引入火的大小和火的间距来预测天花板的纵向温度衰减。所提出的模型可以很好地预测当前的工作和以前的相关数据。