Xiaofeng Yang1, *, Yanhong Li1, Aiguo Nie1, Sheng Zhi2, Liyuan Liu3
CMES-Computer Modeling in Engineering & Sciences, Vol.122, No.3, pp. 1141-1157, 2020, DOI:10.32604/cmes.2020.08538
Abstract Supercritical carbon dioxide (Sc-CO2) jet rock breaking is a nonlinear impact
dynamics problem involving many factors. Considering the complexity of the physical
properties of the Sc-CO2 jet and the mesh distortion problem in dealing with large
deformation problems using the finite element method, the smoothed particle
hydrodynamics (SPH) method is used to simulate and analyze the rock breaking process
by Sc-CO2 jet based on the derivation of the jet velocity-density evolution mathematical
model. The results indicate that there exisits an optimal rock breaking temperature by Sc-CO2. The volume and length of the rock fracture increase with the rising of the… More >
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