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Lagrangian simulation of steady and unsteady laminar mixing by plate impeller in a cylindrical vessel

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dc.citedby22
dc.contributor.authorNg K.C.en_US
dc.contributor.authorNg E.Y.K.en_US
dc.contributor.authorLam W.H.en_US
dc.contributor.authorid55310814500en_US
dc.contributor.authorid7201647536en_US
dc.contributor.authorid23028104400en_US
dc.date.accessioned2023-12-29T07:44:03Z
dc.date.available2023-12-29T07:44:03Z
dc.date.issued2013
dc.description.abstractThe steady and unsteady laminar mixing processes agitated by a plate impeller in a cylindrical vessel are computed using a Lagrangian particle method based on the Moving Particle Semi-implicit (MPS) technique. By adopting a novel procedure designed previously to compute the mixing rate in the context of the Lagrangian particle method, it is observed that the mixing performance is strongly dependent on the initial configuration of the mixing interface dividing the fluids. For equivolume mixing, steady mixing is found to be more prominent in mixing fluids initially located in a separate semicircle compartment (side-by-side fluid configuration), while unsteady mixing is better in mixing fluids that initially resided in a separate annulus (annular fluid configuration). The fluid particles that initially concentrated near the center region experience a more rapid detachment from the impeller's tip (hence rapid mixing) in the steady mixing case due to the consistent centripetal force originated by the steady rotation. Difficulties in radial mixing, particularly for those fluids residing near the vessel wall, however, are observed for the case of steady mixing, and this issue is circumvented by introducing certain unsteadiness on the rotational velocity of the impeller's tip (unsteady mixing), which may serve as an alternative in replacing baffles in promoting radial flows near the vessel. � 2013 American Chemical Society.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1021/ie400621b
dc.identifier.epage10014
dc.identifier.issue29
dc.identifier.scopus2-s2.0-84880869259
dc.identifier.spage10004
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-84880869259&doi=10.1021%2fie400621b&partnerID=40&md5=a11a525dd6b727439445e16f5886c4f8
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/30025
dc.identifier.volume52
dc.pagecount10
dc.sourceScopus
dc.sourcetitleIndustrial and Engineering Chemistry Research
dc.subjectImpellers
dc.subjectLagrange multipliers
dc.subjectCylindrical vessels
dc.subjectFluid configuration
dc.subjectInitial configuration
dc.subjectLagrangian particle method
dc.subjectLagrangian simulation
dc.subjectMixing performance
dc.subjectMoving particle semi-implicit
dc.subjectRotational velocity
dc.subjectMixing
dc.titleLagrangian simulation of steady and unsteady laminar mixing by plate impeller in a cylindrical vesselen_US
dc.typeArticleen_US
dspace.entity.typePublication
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