Application of three-dimensional full-loop CFD simulation in circulating fluidized bed combustion reactors–A review

Q Tu, H Wang, R Ocone - Powder Technology, 2022 - Elsevier
Circulating fluidized beds (CFBs) have been widely applied in coal combustion and
gasification industry due to their excellent performance in terms of fuel flexibility and …

Review of machine learning for hydrodynamics, transport, and reactions in multiphase flows and reactors

LT Zhu, XZ Chen, B Ouyang, WC Yan… - Industrial & …, 2022 - ACS Publications
Artificial intelligence (AI), machine learning (ML), and data science are leading to a
promising transformative paradigm. ML, especially deep learning and physics-informed ML …

Conventional and data‐driven modeling of filtered drag, heat transfer, and reaction rate in gas–particle flows

LT Zhu, B Ouyang, H Lei, ZH Luo - AIChE Journal, 2021 - Wiley Online Library
This study presents conventional and artificial neural network‐based data‐driven modeling
(DDM) methods to model simultaneously the filtered mesoscale drag, heat transfer and …

Coarse-grain DEM-CFD modelling of dense particle flow in Gas–Solid cyclone

ES Napolitano, A Di Renzo, FP Di Maio - Separation and Purification …, 2022 - Elsevier
Abstract Design, scale-up and operation of cyclone gas–solid separators are mostly based
on simplified models and experience. Previous single-phase or one-way coupled …

A hybrid mesoscale closure combining CFD and deep learning for coarse-grid prediction of gas-particle flow dynamics

B Ouyang, LT Zhu, YH Su, ZH Luo - Chemical Engineering Science, 2022 - Elsevier
This study develops filtered two-fluid model (fTFM) closures by coupling computational fluid
dynamics (CFD) and deep learning algorithm (DL) for enabling coarse-grid simulations at …

Large-Scale Discrete Element Modeling for a Gas–Solid–Liquid Flow System

R Li, G Duan, D Yamada, M Sakai - Industrial & Engineering …, 2023 - ACS Publications
Gas–solid–liquid three-phase flow systems are ubiquitous in chemical and energy
engineering. To simulate the multiphase systems, the authors' group has developed a …

Machine learning for full spatiotemporal acceleration of gas-particle flow simulations

B Ouyang, LT Zhu, ZH Luo - Powder Technology, 2022 - Elsevier
Gas-particle flows can be well described by highly resolved simulations (HRS). Limited by
the daunting computational cost, HRS at scale remains infeasible. Many methods are …

Experimental investigation and CFD simulation of multiphase flow behavior in air reverse circulation drilling

S Sun, K Bo, R Jia, P Cao, B Chen, M Guo - Advanced Powder Technology, 2023 - Elsevier
In reverse circulation (RC) down-the-hole hammer (DTH) drilling, hole cleaning has a great
impact on reducing accidents and improving efficiency. There is a technical difficulty in RC …

Coarse-grid simulations of full-loop gas-solid flows using a hybrid drag model: Investigations on turbulence models

JS Li, LT Zhu, WC Yan, TAB Rashid, QJ Xu, ZH Luo - Powder Technology, 2021 - Elsevier
The effect of fluid turbulence models on the coarse-grid simulation for the mesoscale gas-
solid flow system is not as clear as that for gas-liquid/single flows. In this study, the effect of …

Homogeneous drag models in gas–solid fluidization: Big data analytics and conventional correlation

B Ouyang, LT Zhu, ZQ Wen, X Chen, ZH Luo - AIChE Journal, 2023 - Wiley Online Library
The drag force model is vital for capturing gas–solid flow dynamics in many simulation
approaches. Most of the homogeneous drag models in the literature are expressed as a …