Yang Yanhui
4 Papers
Yang Yanhui is an academic researcher. The author has contributed to research in topics: Chemical bond & Coal. The author has an hindex of 3, co-authored 4 publications.
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Papers
Influences of hydraulic fracturing on microfractures of high-rank coal under different in-situ stress conditions
TL;DR: In this paper, high-rank coal samples from Chengzhuang and Sihe Mine were selected for hydraulic fracturing simulation experiments, using stereoscopic microfracture scanning and binarization image processing methods, and the mean aperture, surface density, connectivity, mean length and fracture porosity of micro-fractures were compared and analyzed under different in-situ stress conditions before and after hydraulic fracturing.
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Potential impact of CO2 injection into coal matrix in molecular terms
TL;DR: In this paper, the authors used a high-order coal macromolecular model to reveal specific processes of coal macrocular rearrangement caused by CO2 injection through molecular dynamics and the potential impact of this injection on the sequestration and mechanical properties of CO2 in coal matrix was investigated.
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Stress degradation mechanism of coal macromolecular structure: Insights from molecular dynamics simulation and quantum chemistry calculations
TL;DR: In this article, the degradation mechanism of the macromolecular structure of low-rank coal during shearing was studied using the Wender coal structure model, and two chemical bond breakage types were observed: tensile break and shear break.
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Macromolecular structural response of Wender coal under tensile stress via molecular dynamics
TL;DR: In this article, 40 Wender coal macromolecular structures were constructed into a polymer cell, which was stretched with the Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS), and Gaussian was used to determine the dissociation energies.
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