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dc.contributor.authorFavre, F.
dc.contributor.authorAntepara Zambrano, Óscar
dc.contributor.authorOliet Casasayas, Carles
dc.contributor.authorLehmkuhl Barba, Oriol
dc.contributor.authorPérez Segarra, Carlos David
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.identifier.citationFavre, F. [et al.]. An immersed boundary method to conjugate heat transfer problems in complex geometries. Application to an automotive antenna. "Applied thermal engineering", 5 Febrer 2019, vol. 148, p. 907-928.
dc.description.abstractConsidering that the most common reason for electronic component failure is the excessive temperature level, an efficient thermal management design can prolong the operating life of the equipment, while also increasing its performance. Computational Fluid Dynamics and Heat Transfer (CFD&HT) have proved valuable in the study of these problems, since they can produce reliable fields of fluid flow, temperature and heat fluxes. Moreover, thanks to the recent advances in high-performance computers, CFD&HT numerical simulations are becoming viable tools to study real problems. The conventional approach, which consists of employing body-conformal meshes to the solids and fluids regions, often results costly and ineffective in applications with very complex geometries and large deformation. For these cases, an alternative approach, the Immersed Boundary Method (IBM), which employs a non-body conformal mesh and discretizes the entire domain using a special treatment in the vicinity of the solid-fluid interfaces, has proven more effective. In this work, an IBM was extended to simulate problems with conjugate heat transfer (CHT) boundary conditions taking into account the radiative exchange between surfaces. It was designed to work with any type of mesh (domain discretization) and to handle any body geometry. The implementation was validated and verified by several simulations of benchmark cases. Moreover, the IBM was applied in an industrial application which consists of the simulation of a Smart Antenna Module (SAM). All in all, the carried out studies resulted in a monolithic methodology for the simulation of realistic situations, where all three heat transfer mechanisms can be considered in complex geometries.
dc.format.extent22 p.
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.subjectÀrees temàtiques de la UPC::Física::Termodinàmica
dc.subject.lcshHeat -- Transmission
dc.subject.lcshComputational fluid dynamics
dc.subject.lcshElectronic apparatus and appliances
dc.subject.otherConjugate heat transfer
dc.subject.otherCooling electronics
dc.subject.otherComputational fluid dynamics
dc.subject.otherImmersed boundary method
dc.subject.otherAutomotive antenna
dc.titleAn immersed boundary method to conjugate heat transfer problems in complex geometries. Application to an automotive antenna
dc.subject.lemacCalor -- Transmissió
dc.subject.lemacDinàmica de fluids computacional
dc.subject.lemacElectrònica -- Aparells i instruments
dc.contributor.groupUniversitat Politècnica de Catalunya. CTTC - Centre Tecnològic de la Transferència de Calor
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
local.citation.authorFavre, F.; Antepara, O.; Oliet, C.; Lehmkuhl, O.; Perez, C.
local.citation.publicationNameApplied thermal engineering

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Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain