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Computational Thermal Sciences: An International Journal
ESCI SJR: 0.249 SNIP: 0.434 CiteScore™: 0.7

ISSN Imprimer: 1940-2503
ISSN En ligne: 1940-2554

Computational Thermal Sciences: An International Journal

DOI: 10.1615/ComputThermalScien.2018019998
pages 575-592

NUMERICAL INVESTIGATION OF HEAT AND MASS TRANSFER WITH CONDENSATION IN A GYPSUM BOARD USING THE LATTICE BOLTZMANN METHOD

Kaouther Zannouni
Laboratory of Thermal and Energy Systems Studies, National School of Engineers, Monastir University, Monastir, Tunisia
Hacen Dhahri
Laboratory of Thermal and Energy Systems Studies, National School of Engineers, Monastir University, Monastir, Tunisia
Abdallah Mhimid
University of Monastir, Thermal System Energetic Laboratory Research (LESTE), National School Engineering of Monastir, Avenue Ibn Jazzar, 5019 Tunisia

RÉSUMÉ

Heat and mass transfer with condensation in a gypsum board based on a diffusive model is investigated. The upper face of the plate represents the permeable interface. Both the vertical and low sides of the porous media are supposed to be adiabatic and impermeable surfaces. The model for the energy transport is based on the local thermodynamic equilibrium between the fluid and solid phases. The lattice Boltzmann method (LBM) is used to solve the differential equation system. The obtained numerical results concerning themoisture content and the temperature within a gypsum sample were discussed. A systematical investigation was conducted to explore the influence of different parameters on the processes, including the external temperature, the relative humidity, the diffusion coefficient, and the porosity of the gypsum sample on macroscopic fields.


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