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首页> 外文期刊>Numerical Heat Transfer, Part B. Fundamentals: An International Journal of Computation and Methodology >Green's Function Approach for Heat Conduction: Application to Steel Members Protected by Intumescent Paint
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Green's Function Approach for Heat Conduction: Application to Steel Members Protected by Intumescent Paint

机译：格林函数导热方法：在膨胀型涂料保护的钢构件中的应用

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摘要

Green's function approach provides a new possibility of analytical procedure for heat transfer analysis of structures in fire. In many cases, it has been applied successfully to predict the temperature field. Heat transfer analysis of structure members protected by intumescent paint is complicated by active expansion of the base coat at elevated temperature. Because of this complex thermal behavior of intumescence, as well as commercial concern about the release of information, very little research has been reported in the literature. In this article, a Green's function method based on a one-dimensional reduced heat transfer model is presented. The highly nonlinear thermal conductivity of the intumescent paint is simplified to be temperature-independent to yield analytically tractable solutions of heat equations. The proposed approach is verified against the experimental investigation as well as finite-element analysis.
机译：格林函数方法为火灾中建筑物的热传递分析提供了新的分析程序。在许多情况下，它已成功地应用于预测温度场。在高温下主动膨胀底涂层会使受膨胀涂料保护的结构构件的传热分析变得复杂。由于膨胀的这种复杂的热行为，以及商业上对信息发布的关注，文献中很少有研究报道。本文提出了一种基于一维简化传热模型的格林函数方法。膨胀型涂料的高度非线性热导率被简化为与温度无关，从而产生热方程的解析可解析解。通过实验研究和有限元分析验证了该方法的有效性。

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