CFD-SIMULATION OF COUPLED VAPOR AND MOISTURE TRANSFER IN POROUS BUILDING MATERIALS
Presented CFD-model considers coupled vapor and moisture transfer processes in porous building materials. In contrast to the existing models, it takes into account the ratio between vapor and moisture components in accordance with the building materials’ sorption curve. The specific analysis of the model development in ANSYS-FLUENT is presented and the results are compared with experimental data of the gas concrete humidification.
2. Bogoslovskiy V.N. Building thermal physics (thermal fundamentals of heating, ventilation and air conditioning) – M:. Vischaya shkola, 1982. – 415 p.
3. Manual of analysis moisture regime of building envelopes. – M: Stroyizdat, 1984. – 168 p.
4. Woloszyn M., Rode C. Tools for Performance Simulation of Heat, Air and Moisture Conditions of Whole Buildings // Building Simulation. – 2008. – Vol.1. – P. 5 – 24.
5. ANSYS FLUENT. Theory Guide. Realise 14.0. – 2011. – 862 p.
6. Steeman H.J., Janssens A., De Paepe M. Coupling moisture transport in air flows and porous materials using CFD // Proceedings of the 8th Symposium on Building Physics in the Nordic Countries, June 16 – 18. – Copenhagen, Denmark.– 2008. – Р. 715 – 722.
7. Mortensen L. H., Woloszyn M., Rode C., Peuhkuri R. Investigation of Microclimate by CFD Modeling of Moisture Interactions between Air and Constructions // Journal of Building Physics. – 2007. – Vol. 30. – P. 279 – 315.
8. Künzel H.M. Simultaneous Heat and Moisture Transfer in Building Components: One- and Two dimensional calculation using simple parameters // Ph.D. Thesis, University of Stuttgart, Germany. – 1995. – 65 p.
9. Nizovtsev M.I., Sterlyagov A.N., Terekhov V.I. Verification of the model calculation of coupled heat and moisture on the gas concrete humidification // Izvestia vuzov. Stroitelstvo. – 2008. – № 1 (589). – P. 105 – 110.
10. Nizovtsev M.I., Sterlyagov A.N., Terekhov V.I. Effect of temperature gradient on moisture transfer in porous materials // Polzunovskiy vestnik. – 2012. – № 3/1. – P.17 – 21.
11. GOST 24816-81 Method of determining moisture sorption // Moscow: Izdatelstvo standartov. – 1988. – 20 p.
12. Crawley D.B. Lawrie L.K., Winkelmann F.C., Buhl W.F., Huang Y.J., Pedersen C.O., Strand R.K., Liesen R.J., Fisher D.E., Witte M.J., Glazer J. EnergyPlus: creating a new-generation building energy simulation program // Energy and Building. – 2001. – Vol 33. – Р. 319 – 331.
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