每年出版 4 期
ISSN 打印: 2151-4798
ISSN 在线: 2151-562X
Indexed in
NUMERICAL AND EXPERIMENTAL ASSESSMENT OF GROUND TEMPERATURE AND WATER CONTENT UNDER MILD WEATHER CONDITIONS
摘要
Knowledge about the dynamics of soil moisture and heat, especially at the surface, provides important insight into the physical processes governing their interactions with the atmosphere, thereby improving the understanding of patterns of climate dynamics. A numerical solution applied to model heat and water in a Brazilian field using a modified Kusuda solution and two numerical models, (i) PowerDomus software and (ii) a decoupled Philip and de Vries mathematical model, are presented. Results of in situ measurements of temperature and moisture were used to validate the two numerical models. On the whole, the PowerDomus results correspond fairly well with the experiments for the temperature distribution, with higher errors appearing in the upper ground layers where the variations of the air external temperature highly influence the temperature inside the ground. Results of predicted soil moisture evolution using the decoupled Philip and de Vries model compared fairly well with values obtained from experiment, especially at the topmost layers under the influence of rain precipitation.
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Gasparin Suelen, Chhay Marx, Berger Julien, Mendes Nathan, A hybrid analytical–numerical method for computing coupled temperature and moisture content fields in porous soils, Journal of Building Physics, 42, 1, 2018. Crossref