Abstract
While the transfer equations for moisture and heat in building components are currently undergoing standardisation, atmospheric boundary conditions, conservative modelling and numerical efficiency are not addressed. In a first part, this paper adds a comprehensive description of those boundary conditions, emphasising wind-driven rain and vapour exchange, the main moisture supply and removal mechanism, respectively. In the second part the numerical implementation is tackled, with specific attention to the monotony of the spatial discretisation, and to the mass and energy conservation of the temporal discretisation. Both issues are illustrated with exemplary hygrothermal simulations. Numerical efficiency is treated in two follow-up papers.
| Original language | English |
|---|---|
| Pages (from-to) | 1128-1140 |
| Number of pages | 13 |
| Journal | International Journal of Heat and Mass Transfer |
| Volume | 50 |
| Issue number | 5-6 |
| DOIs | |
| Publication status | Published - Mar 2007 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 7 Affordable and Clean Energy
Keywords
- Atmospheric boundary conditions
- Conservative modelling
- Heat and moisture transfer
- Hygrothermal modelling
- Numerical simulation
- Porous materials
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
- Fluid Flow and Transfer Processes
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