publication . Article . Other literature type . 2018

Geothermal-Related Thermo-Elastic Fracture Analysis by Numerical Manifold Method

He, Jun; Liu, Quansheng; Wu, Zhijun; Jiang, Yalong;
Open Access
  • Published: 29 May 2018 Journal: Energies, volume 11, page 1,380 (eissn: 1996-1073, Copyright policy)
  • Publisher: MDPI AG
Abstract
One significant factor influencing geothermal energy exploitation is the variation of the mechanical properties of rock in high temperature environments. Since rock is typically a heterogeneous granular material, thermal fracturing frequently occurs in the rock when the ambient temperature changes, which can greatly influence the geothermal energy exploitation. A numerical method based on the numerical manifold method (NMM) is developed in this study to simulate the thermo-elastic fracturing of rocklike granular materials. The Voronoi tessellation is incorporated into the pre-processor of NMM to represent the grain structure. A contact-based heat transfer model ...
Subjects
free text keywords: General Computer Science, Thermal, Heat transfer, Mechanics, Thermal conduction, Geothermal energy, business.industry, business, Engineering, Granular material, Geothermal gradient, Electronic engineering, Elasticity (economics), Numerical analysis, numerical manifold method, thermo-elastic fracturing, Voronoi tessellation, contact heat transfer, Technology, T
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