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

Abstract : 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 nonisothermal 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.
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https://hal.archives-ouvertes.fr/hal-01815586
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Submitted on : Thursday, June 14, 2018 - 12:02:22 PM
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Clément Belleudy, Monika Woloszyn, Marx Chhay, Matthieu Cosnier. A 2D model for coupled heat, air, and moisture transfer through porous media in contact with air channels. International Journal of Heat and Mass Transfer, 2016, 95, pp.453-465. ⟨10.1016/j.ijheatmasstransfer.2015.12.030⟩. ⟨hal-01815586⟩

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