Gas-solid fluidization technology has been commercialized in many industrial applications
since its implementation in the fluid catalytic cracking process in the early 1940s, however …

In the past few decades, multi-scale numerical methods have been developed to model
dense gas-solid flow in fluidized beds with different resolutions, accuracies, and efficiencies …

Coarse-grid two-fluid simulation of gas-solid fluidized bed reactors based on the kinetic
theory of granular flow exhibits a significant dependence on drag models, especially for …

This article reviews the general features of the multiscale structures in particle–fluid systems
and the characterization, modeling, and simulation methods for these systems. The …

A new discrete particle simulation algorithm, namely unresolved LBM-DEM method, is
proposed. In this method, fluid phase and particle phase are calculated by lattice Boltzmann …

The EMMS/bubbling drag model takes the effects of meso-scale structures (ie bubbles) into
modeling of drag coefficient and thus improves coarse-grid simulation of bubbling and …

The previous sub-grid, energy-minimization multi-scale (EMMS) drag models were all
established at certain fixed operating conditions and material properties. In this study, we …

Developing, verifying and validating sub-grid methods is of crucial significance for enabling
accurate coarse-grained two-fluid modeling of rapid gas-fluidized flows. However, very few …

In this paper, we describe an industrial application of the discrete element method (DEM).
The DEM has been applied to various powder systems thus far and therefore appears to be …

Wet granules drying in a fluidized bed is a complex process and the process involves heat
and mass transfer between gas and solid phases as well as the moisture changes in the …