Network analysis of heat transfer in sands
W Fei, GA Narsilio
Computers and Geotechnics | Elsevier | Published : 2020
Differences in the effective thermal conductivity (ETC) between measurements and models may be attributed to the limited ability to capture microstructural information of geomaterials. Today, computed tomography (CT) technology offers unprecedented access to such information, particularly for sands. Since a sand can be represented as a contact network made of nodes (particles) connected by edges (contacts), features (or variables) arising from the contact network can characterise particle connectivity. However, existing contact network features neglect the contribution of contact quality and of small gaps between neighbouring particles to heat transfer. To redress these issues, this paper in..View full abstract
The authors would like to thank Yu Zhou for photographing the sands, and Dr Anton Maksimenko and the other academics at Australian Synchrotron, Victoria, Australia for supporting us in obtaining images via CT imaging and medical beamline (IMBL). The first author would like to thank the University of Melbourne for support via a Melbourne Research Scholarship and Dr Joost van der Linden and Dr Mahdi Miri Disfani for fruitful discussions.