Review of CFD-DEM modeling of wet fluidized bed granulation and coating processes

Y Song, T Zhou, R Bai, M Zhang, H Yang - Processes, 2023 - mdpi.com
Wet fluidized bed granulation and coating processes have been widely used in the
pharmaceutical and food industries. The complex gas–solid flow coupled with heat and …

Advances in numerical simulation of unit operations for tablet preparation

Z Li, WH Peng, WJ Liu, LY Yang, A Naeem… - International Journal of …, 2023 - Elsevier
Recently, there has been an increase in the use of numerical simulation technology in
pharmaceutical preparation processes. Numerical simulation can contribute to a better …

[HTML][HTML] Quantifying the coating yield by modeling heat and mass transfer in a Wurster fluidized bed coater

S Madlmeir, T Forgber, M Trogrlic, D Jajcevic… - Chemical Engineering …, 2022 - Elsevier
During the coating process of medicines, premature drying of the spray droplets may cause
losses, as the droplets do not stick to the product. This work addresses two mechanisms that …

Simultaneous optimization of inter-and intra-tablet coating variability in a lab-scale coating process via DEM-MC simulations

F Mostafaei, JG Khinast, J Remmelgas, T Forgber - Powder Technology, 2023 - Elsevier
This work presents a novel time-scale extrapolation method to predict the amount and
location of the coating material on tablets based on short discrete element method (DEM) …

Understanding the correlations between tablet flow dynamics and coating uniformity in a pan coater: Experiments and simulations

J Chen, Q Yang, J Liu, M Jin, S He, X Zhou… - Chemical Engineering …, 2023 - Elsevier
Coating uniformity is crucial for pharmaceutical solid dosages to ensure sufficient stability
and to program drug release behavior. The present study aims to thoroughly investigate the …

DEM-DDM investigation of the tablet coating process using different particle shape models

Z Liu, H Ma, L Zhou, Y Liu, Z Huang… - Industrial & …, 2022 - ACS Publications
Tablets are usually spray-coated in the pharmaceutical industry, and coating uniformity is
important for the coating process. In this study, discrete element method-discrete droplet …

[HTML][HTML] A coarse-grained parcel method for heat and mass transfer simulations of spray coating processes

S Madlmeir, S Radl - Advanced Powder Technology, 2022 - Elsevier
Abstract The Discrete Element Method (DEM) is commonly used for modeling the flow of
particulate materials. Unfortunately, such detailed simulations are computationally very …

Simulation of a Wurster fluidized bed by CFD–DEM with a cohesive contact model

H Li, D Liu, J Ma, X Chen - Chemical Engineering Research and Design, 2022 - Elsevier
Abstract A CFD–DEM coupled with a cohesive contact model is developed for simulation of
a Wurster fluidized bed with heat and mass transfer. First, the water evaporation and …

Modeling of inter-tablet coating uniformity of electrostatic dry powder coating by discrete element method

Q Yang, J Chen, X Zhou, H Zhou, G Yang, J Zhu - Powder Technology, 2022 - Elsevier
The current study aims to apply an innovative mathematical model based on the discrete
element method to numerically simulate the electrostatic dry powder coating process and to …

A hybrid workflow for investigating wide DEM parameter spaces

T Forgber, JG Khinast, E Fink - Powder Technology, 2022 - Elsevier
Calibration of contact parameters for the DEM approach remains one of the critical obstacles
for an accurate description of powder flows. Ideally, such a calibration approach relies on …