Large-scale coherent structures in an asymmetrically heated channel flow

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dc.contributor.authorGarcía Berenguer, Marina
dc.contributor.authorSilva, Lucas Gasparino Ferreira da
dc.contributor.authorLehmkuhl Barba, Oriol
dc.contributor.authorRodríguez Pérez, Ivette María
dc.contributor.groupUniversitat Politècnica de Catalunya. TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Màquines i Motors Tèrmics
dc.contributor.otherUniversitat Politècnica de Catalunya. Doctorat en Ciència i Tecnologia Aeroespacials
dc.contributor.otherBarcelona Supercomputing Center
dc.date.accessioned2023-10-09T11:01:55Z
dc.date.available2023-10-09T11:01:55Z
dc.date.issued2023
dc.description.abstractA compressible direct numerical simulation (DNS) has been conducted to analyze the behavior of low-speed flows submitted to a strong temperature gradient in a fully developed and asymmetrically heated turbulent channel flow. The focus is to understand the relevance of the variable thermophysical properties and their impact on the heat transfer mechanisms. The simulations have been performed at mean friction Reynolds number Ret m = 400 submitted to a high-temperature ratio between the two walls (Thot/Tcold = 2). The results show an increased flow mixing and recirculation due to the temperature difference between the walls.
dc.description.peerreviewedPeer Reviewed
dc.description.sponsorshipThis work has been partially financially supported by the Ministerio de Economía y Competitividad, Secretaría de Estado de Investigación, Desarrollo e Innovación, Spain (ref. PID2020-116937RB-C21 and PID2020-116937RB-C22). We also acknowledge Red Española de Supercomputación (RES) for awarding access to the MareNostrum IV machine based in Barcelona, Spain (IM-2022-3-0010). The corresponding first author gratefully acknowledges the Universitat Politècnica de Catalunya and the Banco Santander for the financial support of her predoctoral grant FPI- UPC.
dc.description.versionPostprint (published version)
dc.identifier.citationGarcía-Berenguer, M. [et al.]. Large-scale coherent structures in an asymmetrically heated channel flow. A: International ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements. "14th International ERCOFTAC Symposium on Engineering, Turbulence, Modelling and Measurements: 6th-8th September 2023, Barcelona, Spain: proceedings". European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2023.
dc.identifier.urihttps://hdl.handle.net/2117/394745
dc.language.isoeng
dc.publisherEuropean Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC)
dc.relation.projectidinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116937RB-C22/ES/TOWARDS REAL-TIME ACTUATION STRATEGIES FOR FLOW CONTROL AND NOISE REDUCTION IN AIRCRAFTS./
dc.rights.accessOpen Access
dc.subjectÀrees temàtiques de la UPC::Enginyeria mecànica::Mecànica de fluids
dc.subject.lcshSimulation methods
dc.subject.lcshHeat --Transmission
dc.subject.lemacSimulació, Mètodes de
dc.subject.lemacCalor -- Transmissió
dc.subject.otherDirect numerical simulation
dc.subject.otherLow-speed flows
dc.subject.otherThermophysical properties
dc.subject.otherHeat transfer mechanisms
dc.subject.otherReynolds number
dc.titleLarge-scale coherent structures in an asymmetrically heated channel flow
dc.typeConference report
dspace.entity.typePublication
local.citation.authorGarcía-Berenguer, M.; Gasparino, L.; Lehmkuhl , O.; Rodriguez, I.
local.citation.contributorInternational ERCOFTAC Symposium on Engineering Turbulence Modelling and Measurements
local.citation.publicationName14th International ERCOFTAC Symposium on Engineering, Turbulence, Modelling and Measurements: 6th-8th September 2023, Barcelona, Spain: proceedings
local.identifier.drac37001465

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