Effect of turbulence modeling on hydrodynamics of a turbulent contact absorber

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dc.authoridKHAN, AFRASYAB/0000-0001-9230-202X
dc.authoridKILIC, MUSTAFA/0000-0002-8006-149X
dc.authoridUllah, Atta/0000-0001-8010-3904
dc.contributor.authorUllah, Atta
dc.contributor.authorAmanat, Amna
dc.contributor.authorImran, Muhammad
dc.contributor.authorGillani, Syed Shah Jehan
dc.contributor.authorKılıç, Mustafa
dc.contributor.authorKhan, Afrasyab
dc.date.accessioned2025-01-06T17:44:39Z
dc.date.available2025-01-06T17:44:39Z
dc.date.issued2020
dc.description.abstractA computational fluid dynamics (CFD) study is conducted to find a suitable two equation turbulence model for accurate prediction of hydrodynamics of an inhouse turbulence contact absorber (TCA) at high gas and liquid velocities. Based on the multi-fluid Eulerian approach, hydrodynamics of TCA is simulated by incorporating three turbulence models i.e. standard k-epsilon model, RNG k-epsilon model and SST k-omega model in ANSYS Fluent (R). The solid phase stresses were closed by using the kinetic theory of granular flows (KTGF). TCA hydrodynamics parameters; expanded bed height and bed pressure drop were used to compare the results of this study with experimental data and also with earlier numerical study published with laminar viscous model. It was found that the RNG k-epsilon model predicted the bed height and pressure drop better than its counterparts. To accurately find the effects of secondary phase turbulence, two RNG k-epsilon model options i-e. per phase and dispersed were also evaluated. The results show that the per phase option of RNG k-epsilon model produced the expanded bed height and pressure drop in close agreement with available experimental data at similar operating conditions.
dc.description.sponsorshipPakistan Institute of Engineering and Applied Sciences (PIEAS)
dc.description.sponsorshipSecond author acknowledges the fellowship she received from Pakistan Institute of Engineering and Applied Sciences (PIEAS) to complete her MS in Process Engineering. The authors are grateful to Dr. Muhammad Zaman and Dr. Muhammad Nadeem for helpful technical discussions.
dc.identifier.doi10.1016/j.cep.2020.108101
dc.identifier.issn0255-2701
dc.identifier.issn1873-3204
dc.identifier.scopus2-s2.0-85089796221
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.cep.2020.108101
dc.identifier.urihttps://hdl.handle.net/20.500.14669/3143
dc.identifier.volume156
dc.identifier.wosWOS:000577412400018
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Sa
dc.relation.ispartofChemical Engineering and Processing-Process Intensification
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectTurbulent contact absorber
dc.subjectTurbulence modeling
dc.subjectHydrodynamics
dc.subjectMulti-fluid Eulerian model
dc.subjectRNG k-epsilon model
dc.subjectComputational fluid dynamics
dc.titleEffect of turbulence modeling on hydrodynamics of a turbulent contact absorber
dc.typeArticle

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