Efficient reconstruction and validation of heterogeneous microstructures for energy applications
Journal Article
·
· International Journal of Energy Research
- Univ. of Kansas, Lawrence, KS (United States); OSTI
- Harbin Institute of Technology (China)
- Univ. of Kansas, Lawrence, KS (United States)
The digital reconstruction of microstructures is necessary for simulations in fields ranging from geology to electrochemistry, but the state-of-the-art digital reconstruction techniques often compromise between resolution and field of view. It is challenging to retain detailed microstructure information in large-scale reconstructions. Here, this study investigates different aspects of the Yeong-Torquato algorithm based on correlation functions to make it more efficient. We achieve this goal by reducing the computational complexity of the chord-length distribution function and the two-point correlation function, applying the random sphere-packing method as the initial condition, and restricting potential voxel swaps to interfaces. In addition, a novel superposition parallel scheme is introduced to aid in searching for potential voxel swaps. The algorithm proposed is validated by comparing the pore-size distributions of reconstructed 3D custom battery electrodes from a sample dataset obtained from transmission X-ray microscopy. From a sample image with 200 x 200 pixels, the code can reconstruct a 300 x 300 x 300 structure in under 22 h and reconstruct a 400 x 400 x 400 structure in 43 h with eight cores.
- Research Organization:
- Univ. of Kansas, Lawrence, KS (United States)
- Sponsoring Organization:
- USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- Grant/Contract Number:
- EE0008440
- OSTI ID:
- 2418630
- Alternate ID(s):
- OSTI ID: 1907019
- Journal Information:
- International Journal of Energy Research, Journal Name: International Journal of Energy Research Journal Issue: 15 Vol. 46; ISSN 0363-907X
- Publisher:
- WileyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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