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dc.contributor.authorKadivar, Mohammadreza
dc.contributor.authorTormey, David
dc.contributor.authorMcGranaghan, Gerard
dc.identifier.citationKadivar, M., Tormey, D., & McGranaghan, G. J. (2022). CFD Prediction of Turbulent Convective Heat Transfer in Additive Manufactured Rough Channels. 7th Thermal and Fluids Engineering Conference (TFEC), Las Vegas, NV, USA: American Society Of Thermal And Fluids Engineering. In ASTFE Digital Library. Begel House Inc..en_US
dc.descriptionThis publication has emanated from research conducted with the financial support of Science Foundation Ireland under Grant number 16/RC/3872. For the purpose of Open Access, the author has applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission.en_US
dc.description.abstractDue to the physical phenomena involved in Powder Bed Fusion (PBF) processes, the surface of the manufactured product is naturally rough, significantly impacting the characteristics of fluid flow and heat transfer over the surface. Several studies have attempted to develop Computational Fluid Dynamics (CFD) models to predict friction factor and Nusselt number in rough channels and despite progress in roughness models, further investigations are required to develop a numerically reliable method in the study of heat transfer over the highly irregular roughness made by PBF. This study developed a high-fidelity numerical model based on the Reynolds Averaged Navier-Stokes (RANS) framework to investigate convective heat transfer over rough surfaces with different roughness heights and topology. Several models based on roughness extensions of RANS were compared with the resolving-roughness approach proposed in this study. In comparison with experimental results, the predictions of this approach broadly match the of the velocity profile for a wide range of roughness heights. The proposed approach predicted the expected downward shift in both the velocity and temperature profiles due to roughness, and the variations of these profiles for different roughness topologies.en_US
dc.publisherAmerican Society Of Thermal And Fluids Engineeringen_US
dc.relation.ispartof7th Thermal and Fluids Engineering Conference (TFEC)en_US
dc.rightsAttribution 3.0 United States*
dc.subjectHeat -- Transmissionen_US
dc.subjectConvection heat transferen_US
dc.subjectAdditive manufacturingen_US
dc.subjectComputational fluid dynamicsen_US
dc.subjectPowder bed fusionen_US
dc.subjectSurface roughnessen_US
dc.titleCFD Prediction of Turbulent Convective Heat Transfer in Additive Manufactured Rough Channels /en_US
dc.conference.hostAmerican Society Of Thermal And Fluids Engineeringen_US
dc.conference.locationLas Vegas, NV, USen_US
dc.subject.departmentDept of Mechanical & Manufacturing Engineering, ATU Sligoen_US

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Attribution 3.0 United States
Except where otherwise noted, this item's license is described as Attribution 3.0 United States