Faraj M. Zaid1,2, Thaar M. Aljuwaya3,4,*, Muthanna H. Al-Dahhan1,3,5,*
FDMP-Fluid Dynamics & Materials Processing, Vol.21, No.10, pp. 2443-2471, 2025, DOI:10.32604/fdmp.2025.067557
- 30 October 2025
Abstract This study presents a detailed experimental evaluation of a newly developed mechanistic scale-up methodology for gas-solid fluidized beds. Traditional scale-up approaches typically rely on matching global dimensionless groups, which often fail to ensure local hydrodynamic similarity. In contrast, the new mechanistic method aims to achieve scale-up by matching the radial profiles of gas holdup between geometrically similar beds at corresponding dimensionless axial positions (z/Dc). This approach is based on the premise that when gas holdup profiles align, other key hydrodynamic parameters—such as solids holdup and particle velocity—also become similar. To validate this methodology, experiments were conducted More >
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