Hu Zhao

TL;DR: In this paper, a simple and effective drag model was proposed to address the critical role of particle shape in determining the inter-phase drag force, which features the usage of Ganser correlation and Ergun correlation, respectively, in dilute and dense solid concentration conditions.

TL;DR: Yang et al. as mentioned in this paper developed a new drag model for Geldart A particles in the bubbling fluidized bed with louver baffles, and the simulation results showed good agreement with the experimental data of the radial and axial solid volume fraction distributions.

TL;DR: In this paper, the simulation of bubbling fluidized beds (BFB) residence time distribution (RTD) based on the structure-based drag model is conducted for the single and binary gas-solid phases systems, a comparison of computed results with experimental data proves that their model is applicable to both systems with better accuracy.

TL;DR: In this paper, a numerical investigation of the solids residence time distribution and the fluidized structure of a multi-compartment fluidized bed, in which the flow pattern is proved to be close to plug flow by using computational fluid dynamics (CFD) simulations.

TL;DR: In this paper, the authors applied a two-phase Eulerian-Eulerian model combined with the species transport equation to predict solid RTD in a dense fluidized bed.