Development of a hydro-thermal coupled model for unsaturated soils

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A hydro-thermal coupled model for unsaturated soil is presented, which takes moisture and heat transfers into consideration. A finite-element method by FreeFem++ is developed, allowing the spatial and temporal matric suction and temperature changes to be described. The volumetric water content, hydraulic conductivity and thermal conductivity are expressed as a function of the key variable-soil matric suction. Some other parameters are related to another key variable-soil temperature. Comparison between the numerical result and testing data shows the relevance of this coupled model provided that suitable boundary conditions and soil parameters are considered. This hydro-thermal coupled model can be used for predicting the change of matric suction (volumetric water content) and temperature in unsaturated soils and applied for investigating the interaction between unsaturated soil and atmosphere.

Original languageEnglish
Title of host publicationUnsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils
EditorsZhenghan Chen, Changfu Wei, Dean Sun, Yongfu Xu
PublisherCRC Press/Balkema
Pages473-478
Number of pages6
ISBN (Print)9781138029217
DOIs
Publication statusPublished - 1 Jan 2016
Event6th Asia-Pacific Conference on Unsaturated Soil Mechanics from Theory to Practice, AP-UNSAT 2015 - Guilin, China
Duration: 23 Oct 201526 Oct 2015

Publication series

NameUnsaturated Soil Mechanics from Theory to Practice - Proceedings of the 6th Asia-Pacific Conference on Unsaturated Soils

Conference

Conference6th Asia-Pacific Conference on Unsaturated Soil Mechanics from Theory to Practice, AP-UNSAT 2015
Country/TerritoryChina
CityGuilin
Period23/10/1526/10/15

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