Fractal dependence of the packed bed porosity on the particles size distribution

Algis Džiugys, Amir Houshang Mahmoudi, Edgaras Misiulis, Robertas Navakas and Gediminas Skarbalius

Chaos, Solitons & Fractals, 2022, vol. 159, issue C

Abstract: Packed beds formed by granular materials are the heart of many engineering and scientific applications. For a better understanding of transport processes occurring in such porous mediums, first the structural characteristics of packed beds should be known. The discrete element method (DEM) has been used widely as a powerful and reliable tool to study packed beds formed by granular materials. In all DEM-based models, the number of particles is a limiting factor as the computational time increases with the number of particles. To overcome this issue, it is common to neglect small particles in the bed. However, due to missed small particles, the porosity of the packed bed is underestimated. This has an impact on the fluid flow and consequently the heat and mass transfer in the bed.

Keywords: Porous media; Porosity; Fractality; DEM; CFD-DEM (search for similar items in EconPapers)
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:159:y:2022:i:c:s096007792200354x

DOI: 10.1016/j.chaos.2022.112144

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