Publication Details

Category Text Publication
Reference Category Journals
DOI 10.3107/jesss.2.47
Title (Primary) Numerical modeling of heat storage in soils
Author Kolditz, O. ORCID logo ; McDermott, C.I.; Worsch, R.; Blum, P.; Grathwohl, P.
Source Titel Journal of Environmental Science for Sustainable Society
Year 2008
Department ENVINF
Volume 2
Page From 47
Page To 56
Language englisch
Keywords Geothermal energy; non-isothermal fluid flow; porous media; soils; numerical modeling
Abstract In this paper we present a numerical model for the simulation of non-isothermal air flow and corresponding heat transport in the unsaturated soil zone. The governing equations for non-isothermal gas flow and related heat transport are derived. The thermo-hydraulic (TH) coupling is additionally due to material properties, such as density, viscosity, heat diffusivity, which depends on the primary variables air pressure and temperature. A finite element model is developed for the solution of the resulting initial-boundary-value-problem. The numerical model is verified against analytical solutions for simplified problems. Finally, a case study for heat storage in soils is conducted.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=1120
Kolditz, O., McDermott, C.I., Worsch, R., Blum, P., Grathwohl, P. (2008):
Numerical modeling of heat storage in soils
Journal of Environmental Science for Sustainable Society 2 , 47 - 56 10.3107/jesss.2.47