Tag: granular materials
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Paper online (AWR) on water retention in disordered granular media
Shi, Z., Wang, Z., Gan, Y. (2021) Effects of topological disorder in unsaturated granular media via a pore-scale lattice Boltzmann investigation. Advances in Water Resources, in press. [DOI] We studied combined effects of topological disorder and wettability on multi-phase flow in wet granular media using pore-scale lattice Boltzmann simulations. The increasing topological disorder can enhance the…
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Paper online (GRL) on permeability of 3D printed granular media
Wei, D., Wang, Z., Pereira, J.M., Gan, Y. (2021) Permeability of Uniformly Graded 3D Printed Granular Media. Geophysical Research Letters, in press. [DOI] The shape of grains can influence the way how water transports inside a granular material. This study uses 3D printing technique to well control grain shapes. The grain morphology is captured through combinations of relative…
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Paper online (Powder Tech) on wet granular packing
Wang, Z., Pereira, J.M., Gan, Y. (2020) Packing of wet monodisperse spheres. Powder Technology, in press. [DOI] Abstract: We experimentally investigated the packing of wet monodisperse spheres with controlled falling height. The packing fraction are found to decrease with smaller grain size and free fall height. A model describing the effects of interparticle force and falling…
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Paper accepted (Eng Fracture Mech) on non-spherical particle breakage
Wei, D., Zhao, B., Dias-da-Costa, D., Gan, Y. (2019) An FDEM study of particle breakage under rotational point loading. Engineering Fracture Mechanics. In press. [DOI] Abstract: The most commonly adopted method to test the strength of single sand particles is based on platen experiments. This setup tends to align the loading direction towards the particle minimum…
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Paper online (Transport in Porous Media) on liquid patches
Li, S., Liu, M., Hanoar, D., Gan, Y. (2018) Dynamics of Viscous Entrapped Saturated Zones in Partially Wetted Porous Media. Transport in Porous Media. In press. [DOI] As a typical multiphase fluid flow process, drainage in porous media is of fundamental interest both in nature and in industrial applications. During drainage processes in unsaturated soils and porous…
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Paper online (Fusion Eng. Design) on thermal DEM with Smoluchowski effect
Moscardini, M., Gan, Y., Pupeschi, S., Kamlah, M. (2018) Discrete element method for effective thermal conductivity of packed pebbles accounting for the Smoluchowski effect. Fusion Engineering and Design. 127: 192-201. [DOI][PDF:050_FED_2018] Highlights • A thermal DEM code is proposed for the evaluation of the effective thermal conductivity of ceramic breeder pebble beds. • The Smoluchowski effect…
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Paper online (Fusion Eng. Des.) on ellipsoidal DEM
Moscardinia, M., Gan, Y., Annabattula, R.K., Kamlah M. (2017) A Discrete Element Method to simulate the mechanical behavior of ellipsoidal particles for a fusion breeding blanket. Fusion Engineering and Design. 121: 22-31. [DOI][PDF:046_FED_2017_M] Abstract: The breeder materials proposed for the solid tritium breeding blanket concepts are ceramic lithium-based compounds in the form of pebble beds. Different fabrication…
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Paper accepted (Powder Tech.) on packing structures
Title: X-ray tomography investigations of mono-sized sphere packing structures in cylindrical containers Author(s): Joerg Reimann, Jerome Vicente, Emmanuel Brun, Claudio Ferrero, Yixiang Gan, Alexander Rack Powder Technology, in press. [DOI] Abstract: The structure of mono-sized sphere packings (diameter d) in cylindrical containers (diameter D and height H) both with and without inner cylinders (diameter Di)…
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Paper accepted (PLOS ONE) on RC networks
Title: Universality of the Emergent Scaling in Finite Random Binary Percolation Networks Author(s): Chongpu Zhai, Dorian Hanaor, Yixiang Gan PLOS ONE, in press. [DOI:10.1371/journal.pone.0172298] Figure: (Left) A lattice network containing randomly distributed resistors and capacitors; (Right) Normalised admittance module as a function of frequency. Full paper can be downloaded via Publications page.
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Chongpu presented at IEEE Holm Conference and won Young Investigator Award
Mr Chongpu Zhai (a PhD candidate) presented our work on “Stress-dependent frequency response of conductive granular materials” at The IEEE Holm Conference on Electrical Contacts (9-12 October, 2016, Florida USA) and won the Young Investigator Award. Well done and Congratulations, Chongpu. The paper was co-authored by Chongpu Zhai, Dorian Hanaor, Gwénaëlle Proust, and Yixiang Gan, at The…
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Manuscript accepted (FED)
A manuscript has been accepted by Fusion Engineering and Design, summarising Simone’s work during his stay at The University of Sydney, funded by a Go8-DAAD project. Simone is working at Karlsruhe Institute of Technology, Germany. Pupeschi, S., Knitter, R., Kamlah, M., Gan, Y. (2016) Numerical and experimental characterization of ceramic pebble beds under cycling mechanical loading. Fusion…
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Paper online: 3D Printable Geomaterials (Géotechnique)
D. HANAOR, Y. GAN, M. REVAY, D. AIREY and I. EINAV. 3D Printable Geomaterials. Géotechnique, in press. DOI: http://dx.doi.org/10.1680/jgeot.15.P.034 Abstract: One of the many attributes of three-dimensional (3D) printing is the ability to produce particles with independent control of morphology and material properties, parameters that are inexorably entwined in naturally occurring geomaterials. In this paper the 3D printing of…
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Inivited seminar at Zhejiang University
28/10/2015, Dr Yixiang Gan gave an invited seminar at Zhejiang University, China, on “Mechanics of Compacted Granular Materials”.
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Mr Weijing Dai joined the group
Mr Weijing Dai, a new PhD student, joined the group in Feb, 2015. He finished his Bachelor of Engineering degree at Xi’an Jiaotong University in 2012, and MPhil degree at The Hong Kong University of Science and Technology in 2014. His research project will focus on developing novel thermal measurement techniques for heterogeneous materials.
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Paper accepted (Langmuir) on scalable surface area characterisation
Title: “Scalable surface area characterisation by electrokinetic analysis of complex anion adsorption” [DOI: 10.1021/la503581e] Author(s): Hanaor, Dorian; Ghadiri, Maliheh; Chrzanowski, Wojciech; Gan, Yixiang Figure 1. SEM micrographs of Al2O3 powders used in the present study.
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Paper online (FST)
Gan, Y., Hernandez, F., Hanaor, D., Annabattula, R., Kamlah, M., & Pereslavtsev, P. (2014). Thermal Discrete Element Analysis of EU Solid Breeder Blanket Subjected to Neutron Irradiation. Fusion Science and Technology, 66(1), 83-90. [DOI] Annabattula, R. K., Kolb, M., Gan, Y., Rolli, R., & Kamlah, M. (2014). Size-Dependent Crush Analysis of Lithium Orthosilicate Pebbles. Fusion Science and Technology, 66(1),…