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Heat transfer mechanism and characteristics of fluid film on multi-faceted surface under constant cross-flow conditions

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dc.citedby1
dc.contributor.authorMohd Amir F.en_US
dc.contributor.authorYusoff M.Z.en_US
dc.contributor.authorAbu Hassan S.H.en_US
dc.contributor.authorid57345211100en_US
dc.contributor.authorid7003976733en_US
dc.contributor.authorid57222529972en_US
dc.date.accessioned2023-05-29T09:36:08Z
dc.date.available2023-05-29T09:36:08Z
dc.date.issued2022
dc.descriptionAir; Air intakes; Evaporation; Evaporative cooling systems; Film cooling; Heat exchangers; Numerical methods; Nusselt number; Porous materials; Cooling tower fill; Evaporative cooling; Falling film; Falling film on tube; Fluid films; Heat transfer of fluid film; Horizontal-tube; Multi shapes; Multi-geometry; Non-circular; Non-circular cylinder; Volume of fluids; Circular cylindersen_US
dc.description.abstractThe cooling of the fluid film on non-circular surfaces under cross-flow of air is investigated. The heat transfer mechanism and characteristics in enclosed space are not satisfactorily available and well understood. The multi-faceted surface is introduced to simulate the various surface prevalent in heat exchangers, such as the porous media and evaporator. The volume of fluid (VOF) method is used in the numerical investigation with a variation of liquid load to acquire the effect of the liquid to gas (L/G) ratio. The gap between the cross-flow air inlet and the fluid film is constant, but the fluid film surface is the main focus. The relatively larger gap between the air inlet and the fluid film surface results in the Qsensible dominating the heat transfer mechanism. Although the higher fluid film thickness does not improve the heat transfer, its effect is more significant than the dimensionless interfacial velocity, VI*, which is relatively higher on the multi-faceted surface. The Nusselt number is significantly higher on the multi-faceted surface. However, the multi-faceted surface generates flow separations and impairs the interfacial heat transfer. In addition, the Nusselt number is found to be bidirectional on the multi-faceted surface. � 2022 Elsevier Ltden_US
dc.description.natureFinalen_US
dc.identifier.ArtNo123363
dc.identifier.doi10.1016/j.ijheatmasstransfer.2022.123363
dc.identifier.scopus2-s2.0-85136254521
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85136254521&doi=10.1016%2fj.ijheatmasstransfer.2022.123363&partnerID=40&md5=860f38191cde9c7666040e33921981db
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26669
dc.identifier.volume197
dc.publisherElsevier Ltden_US
dc.sourceScopus
dc.sourcetitleInternational Journal of Heat and Mass Transfer
dc.titleHeat transfer mechanism and characteristics of fluid film on multi-faceted surface under constant cross-flow conditionsen_US
dc.typeArticleen_US
dspace.entity.typePublication
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