Abstract
Crack seepage in nature involves natural and water injection flow, causing crack morphology in nature to be varied. Using the numerical simulation method of smoothed particle hydrodynamics (SPH), the natural free flow process in a crack was analyzed. With the interference of the initial velocity of the x = 0 particles, the other terminal particles were shifted, and the particles with initial velocities were reversed. For water injection simulations, ghost particles were set to block particles from overflowing, as particles subjected to injection water were mobilized more quickly than under free flow conditions. For rough cracks, particle magnitude was affected by the boundary shape, but overall particle velocity was influenced little, and the distribution of particles was sparse and densely spaced. For the branch crack simulation, overall particle seepage velocity decreased, but particles moved faster through the wider branch than through the narrower branch. SPH can simulate the seepage through crack networks and be used to analyze the effects of different crack geometries and physical properties.
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Acknowledgments
We wish to thank Dr. Long Xu for the helpful discussions. This work was supported by the National Natural Science Foundation of China (Grant Nos. 41831289, 41772250, and 41877191). The authors also thank the anonymous reviewers for their helpful comments and suggestions.
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Ma, H., Wang, J., Qian, J. et al. Two-Dimensional SPH Analysis of Seepage with Water Injection Process for Different Crack Morphologies. KSCE J Civ Eng 25, 1909–1917 (2021). https://doi.org/10.1007/s12205-021-1202-7
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DOI: https://doi.org/10.1007/s12205-021-1202-7