Axial dispersion coefficients 4 Chemical reactors 4 Fluidized beds 4 Hydrodynamics 4 Mathematical models 4 Radioactive particle tracking 4 Radioactive tracers 4 Radioactivity 4 Three-phase reactors 4 AXIAL DISPERSION 2 Atmospheric movements 2 Axial dispersion model 2 Axially aligned detectors 2 Back-mixing 2 Backmixing 2 Bubble columns 2 Bubbles (in fluids) 2 CFD-DEM 2 CFD-DEM model 2 CHEMICAL EQUIPMENT 2 CHEMICAL REACTIONS 2 Calcium 2 Calcium alginate beads 2 Computational fluid dynamics 2 Dispersion coefficient 2 Dispersion effect 2 Dispersions 2 Fixed Bed Three Phase Reactors 2 Fixed bed reactors 2 Fixed beds 2