Estimation of the axial dispersion coefficient in fluidisation – an approach based on isotropic turbulence
November 11, 2025
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| Article Title: | Estimation of the axial dispersion coefficient in fluidisation – an approach based on isotropic turbulence |
| Authors: | Kechroud N., Tighzert H., Hamaidi – Maouche N., Gunenounou H. |
| Affiliation: | Département Génie des Procédés, Faculté de Technologie, Laboratoire génie de l’environnement Université Abderrahmane MIRA Bejaia |
| Abstract: | The coefficient of axial dispersion of the liquid phase in a liquid-solid fluidized bed is determined by applying isotropic turbulence theory to velocity fluctuation measurements obtained by laser anemometry at the top of the bed. The experiments were conducted using glass particles with three different diameters, fluidized by water. The calculation method used, which is a first for the continuous phase of the fluidized bed, demonstrates that the results of the study qualitatively match the data from the literature. |
| Keywords: | Liquid-solid fluidization, Laser Doppler Anemometer, Isotropic turbulence, Liquid axial dispersion, Bed voidage. |
| *Correspondence: | Nassima Hamaidi – Maouche, Université Abderrahmane MIRA Bejaia, Faculté de Technologie, Département Génie des Procédés, Laboratoire génie de l’environnement Route Targua Ouzemmour Bejaia 06000 Algérie, email: nassima.maouche@univbejaia.dz |
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