Non-isothermal simulation of the behavior of unsaturated soils using a novel EFG-based three dimensional model

Iranmanesh, M. A ; Sharif University of Technology | 2018

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  1. Type of Document: Article
  2. DOI: 10.1016/j.compgeo.2018.02.024
  3. Publisher: Elsevier Ltd , 2018
  4. Abstract:
  5. In this paper, a three-dimensional simulation of fully coupled multiphase fluid flow and heat transfer through deforming porous media is presented in the context of EFG mesh-less method. Spatial discretization of the system of governing equations is performed using EFG and a fully implicit finite difference scheme is employed for temporal discretization. Penalty method is used for imposition of essential boundary conditions. The developed numerical tool is employed to simulate two problems of nuclear waste disposal and CO2 sequestration in deep underground strata. The obtained results demonstrate the capability and robustness of the developed EFG code. © 2018 Elsevier Ltd
  6. Keywords:
  7. Element-free Galerkin method ; Nuclear waste disposal ; Thermo hydro mechanical ; Boundary conditions ; Carbon dioxide ; Computational mechanics ; Constrained optimization ; Finite difference method ; Flow of fluids ; Galerkin methods ; Heat transfer ; Porous materials ; Radioactive waste disposal ; Radioactive wastes ; CO2 sequestration ; Element free Galerkin methods ; Essential boundary conditions ; Fully implicit finite differences ; Hydro-mechanical ; Nonisothermal simulation ; Three dimensional simulations ; Unsaturated porous media ; Waste disposal
  8. Source: Computers and Geotechnics ; Volume 99 , 2018 , Pages 93-103 ; 0266352X (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S0266352X18300600