Wei Long, Jingbo Jia
The multiphase reactive flow behavior of pyrites in fluidized roasters is closely related to particle size distribution (PSD) and gas temperature. The coupled computational fluid dynamics-discrete element method (CFD-DEM) is used to stress the effect of PSD and gas temperature on the minimum fluidization velocity (Umf). Firstly, the accuracy of the model is verified via the previously well-established correlations. Then, the influence of four types of PSD (Gaussian-type, Mono-type, Flat-type and Binary-type) and three temperatures on Umf is explored. Numerical results show that the Umf for the Flat-type PSD is the smallest among the four while the one for the Mono-type PSD is the largest. The minimum fluidization velocities for the Mono-type and Gaussian-type PSD share quite similar values. With the same PSD, increasing the gas temperature results in a decrease in the minimum fluidization velocity. Finally, predictive correlations for the minimum fluidization velocity of the gas-solid fluidized bed reactors are established based on the numerical results.
@article{3f7f4d57-da12-4dec-8fc5-5a61ba6f69e1,
title={CFD DEM investigation on effects of particle size distribution a 2025 Partic},
author={Wei Long and Jingbo Jia},
year={2026},
language={en}
}TY - JOUR TI - CFD DEM investigation on effects of particle size distribution a 2025 Partic AU - Wei Long AU - Jingbo Jia PY - 2026 LA - en ER -
G.Oyungerel, G.Batdemberel
Particle sizes and their distributions of aerosols along the road in Ulaanbaatar city were studied by Photon Cross Correlation Spectroscopy (PCCS) NAN
This paper addresses the challenge of assessing the feasibility of wind power plant projects at sites with insufficient or no local historic wind data
Roger Rumbu
This paper provides a detailed investigation into the role of hot gas circulation in metallurgical fluid bed roasters, aiming to enhance heat and mass
Important advances in electrochemical engineering technology over the last three decades have fostered the development of a lternative methods to alle