Defect Engineering in Wüstite: Unlocking Control Over Iron Morphologies in Gas‐Solid Reduction
Sign Up to like & getrecommendations! Published in 2025 at "Advanced Science"
DOI: 10.1002/advs.202416713
Abstract: Hydrogen‐based direct reduction (HyDR) technology has emerged as a promising pathway for sustainable steelmaking. However, the efficiency and stability of HyDR are critically influenced by the microstructure evolution of iron during gas‐solid reduction reactions. Despite… read more here.
Keywords: solid reduction; defect engineering; iron; reduction ... See more keywords
Dynamic multiscale method for gas‐solid flow via spatiotemporal coupling of two‐fluid model and discrete particle model
Sign Up to like & getrecommendations! Published in 2017 at "Aiche Journal"
DOI: 10.1002/aic.15723
Abstract: Various computational fluid dynamics methods have been developed to study the hydrodynamics of gas-solid flows, however, none of those methods is suitable for all the problems encountered due to the inherent multiscale characteristics of gas-solid… read more here.
Keywords: gas; multiscale method; model; gas solid ... See more keywords
Borescopy in pressurized gas‐solid fluidized beds
Sign Up to like & getrecommendations! Published in 2018 at "Aiche Journal"
DOI: 10.1002/aic.16186
Abstract: A borescopic technique was used for finding the effect of pressure on the hydrodynamics of gas-solid fluidized beds. The results showed that solids radial distribution may become more or less uniform with increasing pressure depending… read more here.
Keywords: fluidized beds; pressurized gas; solid fluidized; gas ... See more keywords
Novel drag and Nusselt number models based on direct numerical simulations of a bidisperse gas–solid system
Sign Up to like & getrecommendations! Published in 2024 at "AIChE Journal"
DOI: 10.1002/aic.18308
Abstract: Flow and heat transfer in a bidisperse gas–solid system with freely moving spheres are simulated by particle‐resolved direct numerical simulation (PR‐DNS). Gas–solid coupling is enforced by the direct‐forcing immersed boundary method. Compard with the DNS… read more here.
Keywords: number; drag nusselt; nusselt number; number models ... See more keywords
Partitioning characteristic of chlorine ion in gas and solid phases in process of desulfurization wastewater evaporation: model development and calculation
Sign Up to like & getrecommendations! Published in 2019 at "Environmental Science and Pollution Research"
DOI: 10.1007/s11356-018-04070-5
Abstract: Since the promulgation of “Water Pollution Control Action Plan “ in China, zero liquid discharge of desulfurization wastewater has become a new trend of power plant water pollution control. Aiming at the application of desulfurization… read more here.
Keywords: desulfurization wastewater; chlorine ion; gas; gas solid ... See more keywords
Effect of particle diameter and void fraction on gas–solid two-phase flow: a numerical investigation using the Eulerian–Eulerian approach
Sign Up to like & getrecommendations! Published in 2024 at "Computational Particle Mechanics"
DOI: 10.1007/s40571-024-00798-9
Abstract: Sudden expansion pipes are crucial in fluid dynamics for studying flow behavior, turbulence, and pressure distribution in various systems. This study focuses on investigating the behavior of a two-phase flow, specifically a gas–solid turbulent flow,… read more here.
Keywords: eulerian approach; eulerian eulerian; two phase; gas solid ... See more keywords
Mathematical model and numerical solutions for the coupled gas–solid heat transfer process in moving packed beds
Sign Up to like & getrecommendations! Published in 2017 at "Applied Energy"
DOI: 10.1016/j.apenergy.2017.10.011
Abstract: A theoretical study was performed into the coupled gas–solid heat transfer process in a moving cooling packed clinker bed. A mathematical model for the clinker cooling process including effects from clinker movement is proposed. The… read more here.
Keywords: clinker; coupled gas; process; solid heat ... See more keywords
Effect of flow pulsation on fluidization degree of gas-solid fluidized beds by using coupled CFD-DEM
Sign Up to like & getrecommendations! Published in 2018 at "Advanced Powder Technology"
DOI: 10.1016/j.apt.2018.09.033
Abstract: Abstract In this paper, the effect of inlet flow type on fluidization of a gas-solid fluidized bed was studied by using numerical simulations. Gas-solid fluidized beds are widely used in processes such as heating, cooling,… read more here.
Keywords: velocity; pulsation; gas; gas solid ... See more keywords
Flexible discretization technique for DEM-CFD simulations including thin walls
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DOI: 10.1016/j.apt.2020.02.017
Abstract: Abstract The discrete element method (DEM) coupled with computational fluid dynamics (CFD) method is regarded as a standard approach for a simulation of a gas-solid mixture system. In the DEM-CFD method, the local volume average… read more here.
Keywords: technique; thin walls; method; gas solid ... See more keywords
Quantifying cluster dynamics to improve EMMS drag law and radial heterogeneity description in coupling with gas-solid two-fluid method
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DOI: 10.1016/j.cej.2016.08.084
Abstract: Abstract Quantification of multiscale heterogeneity is the key to the simulation of gas-solid two-phase flow. The energy-minimization multiscale (EMMS) model can be used at different scales to describe local and global heterogeneities as well as… read more here.
Keywords: fluid; heterogeneity; description; gas solid ... See more keywords
Pattern formation in pulsed gas-solid fluidized beds – The role of granular solid mechanics
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2017.05.152
Abstract: Under certain conditions, gas-solid fluidized beds are known to develop a structured flow of bubbles when exposed to periodically pulsating air flows. In quasi-two-dimensional beds, periodically rising bubbles form a triangular tessellation in the vertical… read more here.
Keywords: solid mechanics; fluidized beds; gas; solid fluidized ... See more keywords