A 2D model for coupled heat, air, and moisture transfer through porous media in contact with air channels

作者：Belleudy Clement^*; Woloszyn Monika; Chhay Marx; Cosnier Matthieu

来源：International Journal of Heat and Mass Transfer, 2016, 95: 453-465.

DOI：10.1016/j.ijheatmasstransfer.2015.12.030

• HAM model
• Moisture
• Transient
• Porous media
• Air leakage
• Air channels

Detailed modelling of air leakage paths through complex building wall assemblies is a challenging task. It requires transient modelling of diffusion and advection phenomena through fluid and solid domains, including porous materials and air channels. In this article, the development of a numerical model coupling heat air and moisture transfers (commonly called HAM transfers) is presented. The model is able to deal with non-isothermal air flow through complex 2D (two-dimensional) geometries, combining air channels and porous media, air permeable or not. A stepwise 1D validation of the model is achieved with numerical benchmarks. The model is then tested on a 2D air leakage configuration subjected to infiltration and exfiltration scenarii.

• 出版日期2016-4