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Isogeometric analysis of THM coupled processes in ground freezing.
- Source :
-
Computers & Geotechnics . Aug2017, Vol. 88, p129-145. 17p. - Publication Year :
- 2017
-
Abstract
- An isogeometric analysis (IGA) based numerical model is presented for simulation of thermo-hydro-mechanically (THM) coupled processes in ground freezing. The momentum, mass and energy conservation equations are derived based on porous media theory. The governing equations are supplemented by a saturation curve, a hydraulic conductivity model and constitutive equations. Variational and Galerkin formulation results in a highly nonlinear system of equations, which are solved using Newton-Raphson iteration. Numerical examples on isothermal consolidation in plane strain, one-dimensional freezing and heave due to a chilled pipeline are presented. Reasonably good agreements were observed between the IGA based heave simulations and experimental results. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0266352X
- Volume :
- 88
- Database :
- Academic Search Index
- Journal :
- Computers & Geotechnics
- Publication Type :
- Academic Journal
- Accession number :
- 123407498
- Full Text :
- https://doi.org/10.1016/j.compgeo.2017.02.020