<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>In the paper, the heat transfer inside a building block with cavities is analyzed and a brief overview of the relevant physical problem is given. The equations governing the heat exchange processes are presented and a numerical model is derived with the help of ANSYS software. The role of radiation and convection inside the cavities is emphasized throughout the work. The results show that in such cavities the radiation mechanism of heat transfer is dominant. The authors also examine the dependence of the effective heat conductivity on the properties of clay material. Using the numerical model, attempts have been made to improve the heat resistance of a building block. Possibilities of practical application of numerical modelling in the heat insulation material engineering are discussed.</p></abstract>

In the paper, the heat transfer inside a building block with cavities is analyzed and a brief overview of the relevant physical problem is given. The equations governing the heat exchange processes are presented and a numerical model is derived with the help of ANSYS software. The role of radiation and convection inside the cavities is emphasized throughout the work. The results show that in such cavities the radiation mechanism of heat transfer is dominant. The authors also examine the dependence of the effective heat conductivity on the properties of clay material. Using the numerical model, attempts have been made to improve the heat resistance of a building block. Possibilities of practical application of numerical modelling in the heat insulation material engineering are discussed.

3D NUMERICAL ANALYSIS OF HEAT EXCHANGE IN BUILDING STRUCTURES WITH CAVITIES

Faculty of Physics and Mathematics, Laboratory for Mathematical Modelling of Environmental and Technological Processes, University of Latvia, 8 Zellu Str., Riga, LV-1002, LATVIA

Latvian Journal of Physics and Technical Sciences

{"article-title":"3D NUMERICAL ANALYSIS OF HEAT EXCHANGE IN BUILDING STRUCTURES WITH CAVITIES"}

In the paper, the heat transfer inside a building block with cavities is analyzed and a brief overview of the relevant physical problem is given. The equations...

3D NUMERICAL ANALYSIS OF HEAT EXCHANGE IN BUILDING STRUCTURES WITH CAVITIES

Publié en ligne: 17 mars 2011

Pages: 3 - 12

DOI: https://doi.org/10.2478/v10047-011-0001-1

Mots clés
numerical modelling, effective heat conductivity, convection, radiation, heat conduction, building block

This content is open access.

3D NUMERICAL ANALYSIS OF HEAT EXCHANGE IN BUILDING STRUCTURES WITH CAVITIES

Publié en ligne: 17 mars 2011

Pages: 3 - 12

DOI: https://doi.org/10.2478/v10047-011-0001-1

Mots clésnumerical modelling, effective heat conductivity, convection, radiation, heat conduction, building block

This content is open access.

Mots clés
numerical modelling, effective heat conductivity, convection, radiation, heat conduction, building block