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Prediction of minimum spouting velocity of spouted bed by CFD‐TFM: Scale‐up
Author(s) -
Zhong Wenqi,
Liu Xuejiao,
Grace John R.,
Epstein Norman,
Ren Bing,
Jin Baosheng
Publication year - 2013
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.21865
Subject(s) - mechanics , inlet , computational fluid dynamics , materials science , cfd dem , particle (ecology) , length scale , scale (ratio) , particle density , thermodynamics , geology , physics , geomorphology , oceanography , volume (thermodynamics) , quantum mechanics
Numerical simulations based on a three‐dimensional (3D) Eulerian–Eulerian multiphase model (two‐fluid model, TFM) were carried out to study the minimum spouting velocities of scaled up spouted beds. The spouted bed with a diameter of 0.152 m from the experiments of He et al. was scaled up by factors from 2 to 8, resulting in diameters from 0.304 to 1.216 m. The effects of the static bed height, particle diameter, particle density and fluid inlet diameter on the minimum spouting velocity in different size beds were numerically investigated. A new empirical correlation is proposed for predicting the minimum spouting velocity in both small and large beds.