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Numerical modelling of coupled heat, air and moisture transfer in building envelopes

机译：建筑围护结构中热，空气和湿气耦合传递的数值模型

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This paper reports on numerical modeling of heat, air, and moisture transfer through multilayered walls. Building materials are often subjected to temporal climatic variations, which can induce a transfer of heat and moisture through the walls of the building and the foundation soil. These materials are generally considered as porous media. The coupled heat, air and moisture transfer in building materials is of paramount importance in the construction area. In this way, a mathematical model has been elaborated and validated using a benchmark example. Here, we aim to determine the energy losses. The capillary pressure is considered as potential moisture which represents both the transport of vapor and liquid phases of the water. Basing on basic functions of partial differential equations (PDE's), one can convert certain measurable properties of porous media as coefficients depending on the temperature and the capillary pressure. The results obtained compare favourably with other available in the literature.
机译：本文报道了通过多层壁传热，空气和湿气传递的数值模型。建筑材料通常会受到时间气候变化的影响，这会引起热量和水分通过建筑物墙壁和地基土壤的传递。这些材料通常被认为是多孔介质。建筑材料中热，空气和湿气的耦合传递是最重要的。通过这种方式，已经使用基准示例阐述并验证了数学模型。在此，我们旨在确定能量损失。毛细压力被认为是潜在的水分，它代表了水蒸气和液相的传输。基于偏微分方程（PDE）的基本功能，可以根据温度和毛细管压力将多孔介质的某些可测量属性转换为系数。获得的结果与文献中的其他结果相比具有优势。

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