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Isogeometric analysis of THM coupled processes in ground freezing

Isogeometric analysis of THM coupled processes in ground freezing

Category
Journal publication
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.
Language
English
Author(s)
Affiliation
  • Norwegian University of Science and Technology
  • The University of Tokyo
  • SINTEF Digital / Mathematics and Cybernetics
  • Norwegian University of Science and Technology
Year
2017
Published in
Computers and geotechnics
ISSN
0266-352X
Volume
88
Page(s)
129 - 145