Zongyan Zhou
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View article: Thermal State Simulation and Parameter Optimization of Circulating Fluidized Bed Boiler
Thermal State Simulation and Parameter Optimization of Circulating Fluidized Bed Boiler Open
In order to solve the problem of low thermal efficiency of a 130 t/h industrial circulating fluidized bed boiler, a computational particle fluid dynamic approach was used in this work to study two-phase gas–solid flow, heat transfer, and c…
View article: Numerical Simulation on the Influence of Oxygen Content and Coke Size on the Performance of Fuel Layered-Distribution Sintering Process
Numerical Simulation on the Influence of Oxygen Content and Coke Size on the Performance of Fuel Layered-Distribution Sintering Process Open
Fuel layered-distribution sintering (FLDS) is a technology that can effectively reduce fuel consumption and achieve a more uniform temperature distribution within the sintering bed compared to traditional iron ore sintering. In this study,…
View article: Influence of remelting sequence on defect generation and high-temperature mechanical properties in laser powder bed fusion of IN718 alloys
Influence of remelting sequence on defect generation and high-temperature mechanical properties in laser powder bed fusion of IN718 alloys Open
View article: Coupled dynamic analysis of an underground sewage pipeline circumferential spiral-wound heat exchanger
Coupled dynamic analysis of an underground sewage pipeline circumferential spiral-wound heat exchanger Open
View article: Research and Application of Comprehensive Evaluation Model of Campus Safety Culture Based on Game Theory-Regret Theory
Research and Application of Comprehensive Evaluation Model of Campus Safety Culture Based on Game Theory-Regret Theory Open
To enhance the scientific and objective evaluation of campus safety culture, thereby reducing the risk of campus accidents and improving the overall level of safety culture, this study developed a evaluation index system of campus safety c…
View article: The numerical simulation study of traction elevator steel belt model
The numerical simulation study of traction elevator steel belt model Open
Due to the advantages of high comfort, low power consumption, and energy conservation and environmental protection, traction belt elevators are being increasingly utilized in various scenarios, and the performance of the steel belt under e…
View article: Research on the Hierarchical Separation of Rare Earths and Lithium from Rare Earth Molten Salt Slag
Research on the Hierarchical Separation of Rare Earths and Lithium from Rare Earth Molten Salt Slag Open
Lithium is an important non-renewable resource, and the study of the tiered separation of rare earths and lithium from rare earth molten salt slag is an important approach to solving the current global resource shortage. This article adopt…
View article: Numerical simulation on dehydrogenation behavior during argon blowing enhanced vacuum refining process of high-quality steel
Numerical simulation on dehydrogenation behavior during argon blowing enhanced vacuum refining process of high-quality steel Open
Argon bubble blowing enhanced vacuum refining is a crucial process to remove hydrogen element in molten steel for high-quality steel manufacturing. However, the whole refining process is a black-box operation and the field information insi…
View article: Improved Ductility by Reducing Powder Size in Laser Powder Bed Fusion of AlSi10Mg
Improved Ductility by Reducing Powder Size in Laser Powder Bed Fusion of AlSi10Mg Open
Strict control of powder properties, especially particle size distribution (PSD), is critical in the laser powder bed fusion (LPBF) process to ensure the quality of the fabricated parts. This work shows that reducing the powder size could …
View article: Numerical Simulation on Dehydrogenation Behavior During Argon Blowing Enhanced Vacuum Refining Process of High-Quality Steel
Numerical Simulation on Dehydrogenation Behavior During Argon Blowing Enhanced Vacuum Refining Process of High-Quality Steel Open
View article: Laser shape variation influence on melt pool dynamics and solidification microstructure in laser powder bed fusion
Laser shape variation influence on melt pool dynamics and solidification microstructure in laser powder bed fusion Open
The shape variation of the laser beam is evidently observed in the laser powder bed fusion (LPBF) process because of changes in laser incidence angle and misalignment between the build plate and the laser focus plane. This issue is particu…
View article: Balancing Ventilation Performance and Energy Conservation: An Integrated Multi-Objective Optimization and Preference Decision-Making Model for Optimizing Impinging Jet Ventilation
Balancing Ventilation Performance and Energy Conservation: An Integrated Multi-Objective Optimization and Preference Decision-Making Model for Optimizing Impinging Jet Ventilation Open
View article: Simulation of powder spreading of functionally graded materials in powder bed fusion additive manufacturing
Simulation of powder spreading of functionally graded materials in powder bed fusion additive manufacturing Open
View article: Balancing Ventilation Performance and Energy Conservation: An Integrated Multi-Objective Optimization and Preference Decision-Making Model for Optimizing Impinging Jet Ventilation
Balancing Ventilation Performance and Energy Conservation: An Integrated Multi-Objective Optimization and Preference Decision-Making Model for Optimizing Impinging Jet Ventilation Open
View article: Balancing Ventilation Performance and Energy Conservation: An Integrated Multi-Objective Optimization and Preference Decision-Making Model for Optimizing Impinging Jet Ventilation
Balancing Ventilation Performance and Energy Conservation: An Integrated Multi-Objective Optimization and Preference Decision-Making Model for Optimizing Impinging Jet Ventilation Open
View article: Effect of particle size and particle loading on the mixing behavior of rod-like particles and spherical particles in a fluidized bed
Effect of particle size and particle loading on the mixing behavior of rod-like particles and spherical particles in a fluidized bed Open
View article: Study on Effects of Operation Parameters on Ventilation Performances for a Floor-Standing Air Conditioner
Study on Effects of Operation Parameters on Ventilation Performances for a Floor-Standing Air Conditioner Open
View article: Introduction to the Special Issue on Computational Mechanics of Granular Materials and its Engineering Applications
Introduction to the Special Issue on Computational Mechanics of Granular Materials and its Engineering Applications Open
View article: Influence of satellite and agglomeration of powder on the processability of AlSi10Mg powder in Laser Powder Bed Fusion
Influence of satellite and agglomeration of powder on the processability of AlSi10Mg powder in Laser Powder Bed Fusion Open
Laser powder bed fusion (LPBF) is a powder-based Additive Manufacturing (AM) technology, where the quality control of powder feedstock is critical as the particle packing on the powder bed and laser–particle interaction during laser meltin…
View article: Effect of particle shape on bubble dynamics in bubbling fluidized bed
Effect of particle shape on bubble dynamics in bubbling fluidized bed Open
Particle shape can significantly affect the bubble dynamics of bubbling fluidized beds (BFB). In this paper, findings obtained from simulations using CFD-DEM are summarized to discuss the effect of particle shape on bubble dynamics and bub…
View article: Vibration induced segregation of single large particles
Vibration induced segregation of single large particles Open
The vibration-induced segregation (e.g., rising of one large intruder - so called Brazil Nut Effect (BNE)) is studied by discrete element method. Vibration frequency and amplitude are two dominating factors in the occurrence of BNE and a p…
View article: Investigation of laser-powder interaction in laser powder bed fusion process in additive manufacturing
Investigation of laser-powder interaction in laser powder bed fusion process in additive manufacturing Open
Laser powder bed fusion (LPBF) is one of the most promising additive manufacturing (AM) technologies to fabricate metal components using laser beams. To understand the underlying thermal and physical phenomena in LPBF process, discrete ele…
View article: The demagnetization factor for randomly packed spheroidal particles
The demagnetization factor for randomly packed spheroidal particles Open
View article: Particle scale numerical modelling of heat transfer and melt pool dynamics in selective laser melting
Particle scale numerical modelling of heat transfer and melt pool dynamics in selective laser melting Open
Selective laser melting (SLM), with the advantages in producing complex geometry, is becoming one of the most promising additive manufacturing (AM) technologies [1]. In order to understand the multiple physical phenomena which is crucial f…
View article: A CFD-DEM study of single bubble formation in gas fluidization of spherical and non-spherical particles
A CFD-DEM study of single bubble formation in gas fluidization of spherical and non-spherical particles Open
Bubble dynamics significantly affect the hydrodynamics of gas-solid fluidized bed since they influence the gas-solid mixing. In this study, simulations using CFD-DEM were carried out to characterize the bubble size and shape for a bubble f…
View article: Stress distribution in conical sandpiles formed with ellipsoidal particles
Stress distribution in conical sandpiles formed with ellipsoidal particles Open
\nThe properties of a sandpile such as angle of repose and stress distribution are affected by many variables, among which particle shape is one of the most important ones. In this work, ellipsoids which can represent a large range of shap…
View article: Transverse mixing of ellipsoidal particles in a rotating drum
Transverse mixing of ellipsoidal particles in a rotating drum Open
Rotating drums are widely used in industry for mixing, milling, coating and drying processes. In the past decades, mixing of granular materials in rotating drums has been extensively investigated, but most of the studies are based on spher…
View article: DEM Simulation of Particle Stratification and Segregation in Stockpile Formation
DEM Simulation of Particle Stratification and Segregation in Stockpile Formation Open
\nGranular stockpiles are commonly observed in nature and industry, and their formation has been extensively investigated experimentally and mathematically in the literature. One of the striking features affecting properties of stockpiles …
View article: DEM study of granular flow around blocks attached to inclined walls
DEM study of granular flow around blocks attached to inclined walls Open
\nDamage due to intense particle-wall contact in industrial applications can cause severe problems in industries such as mineral processing, mining and metallurgy. Studying the flow dynamics and forces on containing walls can provide valua…