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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 height on packing fraction is developed by introducing a dimensionless length scale, representing the extent of particle rearrangement towards a denser state due to impacts of falling grains. A universal law is observed for both wet particles where capillary forces dominate and dry powders where van der Waals forces govern the packing behaviour. This study deepens the understanding of packing of cohesive spheres and provide a simple experimental method for generating granular media with tailored packing fraction.

Full paper can be downloaded via?Publications?page, when available.

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