Journal article

Quantifying the impact of rigid interparticle structures on heat transfer in granular materials using networks

Wenbin Fei, Guillermo A Narsilio, Joost H van der Linden, Mandi M Disfani

International Journal of Heat and Mass Transfer | Elsevier | Published : 2019


Coordination number can be used to quantify the particle connectivity and deformability of a granular material. However, it is a local feature of particles at the microscale, and the use of an average coordination number does not allow for full characterization of the microstructural variation in the granular material. Mesoscale structures can be used to overcome this limitation: triangular-like structures at the mesoscale tend to be rigid, whereas square-like structures tend to be deformable. However, the effect of these structures on heat transfer has not been studied in deforming granular materials. A better understating of how microstructure variation affects effective thermal conductivi..

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Funding Acknowledgements

This research was undertaken in the Imaging and Medical Beam Line (IMBL) at the Australian Synchrotron, Victoria, Australia. The authors would like to acknowledge Dr Anton Maksimenko and the other beam scientists at Australian Synchrotron for their support during our experiments. The authors also thank Dr Tabassm Afshar and Dr Xiuxiu Miao for their support in collecting the CT images. The first author thanks The University of Melbourne for offering the Melbourne Research Scholarship.