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A new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow

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dc.citedby3
dc.contributor.authorRamanathan S.en_US
dc.contributor.authorThansekhar M.R.en_US
dc.contributor.authorKanna P.R.en_US
dc.contributor.authorGunnasegaran P.en_US
dc.contributor.authorid55811246800en_US
dc.contributor.authorid6504354111en_US
dc.contributor.authorid8882100100en_US
dc.contributor.authorid35778031300en_US
dc.date.accessioned2023-05-29T07:24:22Z
dc.date.available2023-05-29T07:24:22Z
dc.date.issued2019
dc.descriptionAngle of attack; Boundary layers; Drops; Finite volume method; Heat transfer coefficients; Laminar flow; Numerical methods; Pressure drop; Reynolds number; Enhancing heat transfer; Heat transfer augmentation; Heat Transfer enhancement; Hydraulic boundary layers; Rectangular winglets; Sudden expansion; Thermo-hydraulic performance; Vortex generators; Vortex flowen_US
dc.description.abstractThe relative positions of leading edges and trailing edges of rectangular vortex generators (VG) in the winglet form play a crucial role in modifying thermal and hydraulic boundary layers thereby affecting the heat transfer augmentation and pressure drop in a sudden expansion channel having expansion ratio (ER) 2:1. A numerical simulation was carried out for solving the momentum and energy equations of a three dimensional vortex- laminar flow (Reynolds number < 190) with a finite volume method based commercial code FLUENT 16.2. Reynolds number, angle of attack and VG configuration have been considered as influential parameters affecting the thermo-hydraulic performance of the sudden expansion channel due to the combined effect of primary recirculation and secondary vortex flow. The heat transfer enhancement along with corresponding pressure drop penalty was compared for the toe-out and toe-in configurations at various Reynolds (Re) numbers and angle of attacks (?). Eventually irrespective of configurations, rectangular winglet VGs are found to have better overall performance at ? = 30� and ? = 45� in both toe-out and toe-in configurations due to strong secondary vortex flow. � 2019, KSME & Springer.en_US
dc.description.natureFinalen_US
dc.identifier.doi10.1007/s12206-019-0736-9
dc.identifier.epage3925
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85070379036
dc.identifier.spage3913
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85070379036&doi=10.1007%2fs12206-019-0736-9&partnerID=40&md5=36b6ed6b8a181bdd010687d312482110
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/24540
dc.identifier.volume33
dc.publisherKorean Society of Mechanical Engineersen_US
dc.sourceScopus
dc.sourcetitleJournal of Mechanical Science and Technology
dc.titleA new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flowen_US
dc.typeArticleen_US
dspace.entity.typePublication
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