DEM-CFD modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors

Fixed-bed reactors are widely used in chemical process industries. Many flow resistance coefficient correlations have been proposed for optimal design. However, these correlations usually have their own character and application scope. Therefore, the in-depth comparison and verification analysis of...

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Autores principales:	Yaping Li, Guangwen He, Bin Yu, Shaowei Yan, Le Xie
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Fixed-bed reactors Discrete element method Computational fluid dynamics Pressure drop Flow resistance coefficient Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/290a13aae6b9459c9e58bd406c901955
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spelling	oai:doaj.org-article:290a13aae6b9459c9e58bd406c9019552021-11-18T04:53:00ZDEM-CFD modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors2666-821110.1016/j.ceja.2021.100167https://doaj.org/article/290a13aae6b9459c9e58bd406c9019552021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666821121000831https://doaj.org/toc/2666-8211Fixed-bed reactors are widely used in chemical process industries. Many flow resistance coefficient correlations have been proposed for optimal design. However, these correlations usually have their own character and application scope. Therefore, the in-depth comparison and verification analysis of these drag coefficient correlations are conducive to their correct use. In this study, the discrete element method was employed to develop fixed-bed reactors with different tube-to-particle diameter ratios. Then a large set of computational fluid dynamics (CFD) simulations were conducted to investigate the hydrodynamic characteristics with respect to different inlet velocities and particle sizes, and the simulated pressure drop data were used to calculate the flow resistance coefficient. The output flow resistance coefficients were compared with those calculated by the classical models in laminar and turbulent flow regimes. It was found that the developed DEM-CFD approach was effective to evaluate the scope of applicability of the reported flow resistance coefficient correlations.Yaping LiGuangwen HeBin YuShaowei YanLe XieElsevierarticleFixed-bed reactorsDiscrete element methodComputational fluid dynamicsPressure dropFlow resistance coefficientChemical engineeringTP155-156ENChemical Engineering Journal Advances, Vol 8, Iss , Pp 100167- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Fixed-bed reactors Discrete element method Computational fluid dynamics Pressure drop Flow resistance coefficient Chemical engineering TP155-156
spellingShingle	Fixed-bed reactors Discrete element method Computational fluid dynamics Pressure drop Flow resistance coefficient Chemical engineering TP155-156 Yaping Li Guangwen He Bin Yu Shaowei Yan Le Xie DEM-CFD modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors
description	Fixed-bed reactors are widely used in chemical process industries. Many flow resistance coefficient correlations have been proposed for optimal design. However, these correlations usually have their own character and application scope. Therefore, the in-depth comparison and verification analysis of these drag coefficient correlations are conducive to their correct use. In this study, the discrete element method was employed to develop fixed-bed reactors with different tube-to-particle diameter ratios. Then a large set of computational fluid dynamics (CFD) simulations were conducted to investigate the hydrodynamic characteristics with respect to different inlet velocities and particle sizes, and the simulated pressure drop data were used to calculate the flow resistance coefficient. The output flow resistance coefficients were compared with those calculated by the classical models in laminar and turbulent flow regimes. It was found that the developed DEM-CFD approach was effective to evaluate the scope of applicability of the reported flow resistance coefficient correlations.
format	article
author	Yaping Li Guangwen He Bin Yu Shaowei Yan Le Xie
author_facet	Yaping Li Guangwen He Bin Yu Shaowei Yan Le Xie
author_sort	Yaping Li
title	DEM-CFD modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors
title_short	DEM-CFD modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors
title_full	DEM-CFD modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors
title_fullStr	DEM-CFD modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors
title_full_unstemmed	DEM-CFD modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors
title_sort	dem-cfd modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/290a13aae6b9459c9e58bd406c901955
work_keys_str_mv	AT yapingli demcfdmodelingandsimulationsofhydrodynamiccharacteristicsandflowresistancecoefficientinfixedbedreactors AT guangwenhe demcfdmodelingandsimulationsofhydrodynamiccharacteristicsandflowresistancecoefficientinfixedbedreactors AT binyu demcfdmodelingandsimulationsofhydrodynamiccharacteristicsandflowresistancecoefficientinfixedbedreactors AT shaoweiyan demcfdmodelingandsimulationsofhydrodynamiccharacteristicsandflowresistancecoefficientinfixedbedreactors AT lexie demcfdmodelingandsimulationsofhydrodynamiccharacteristicsandflowresistancecoefficientinfixedbedreactors
_version_	1718424963159949312

DEM-CFD modeling and simulations of hydrodynamic characteristics and flow resistance coefficient in fixed-bed reactors

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