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Experimental and numerical characterization of single-phase pressure drop and heat transfer enhancement in helical corrugated tubes

2021-07-19Journal article Open access
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Química
datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
datacite.subject.fosCiências Naturais::Ciências Físicas
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg13:Ação Climática
dc.contributor.authorCruz, Gonçalo G.
dc.contributor.authorMendes, Miguel A. A.
dc.contributor.authorPereira, José M. C.
dc.contributor.authorSantos, H.
dc.contributor.authorNikulin, A.
dc.contributor.authorMoita, Ana S.
dc.date.accessioned2026-01-16T16:21:28Z
dc.date.available2026-01-16T16:21:28Z
dc.date.issued2021-07-19
dc.descriptionFonte: https://www.researchgate.net/publication/353224434_Experimental_and_numerical_characterization_of_single-phase_pressure_drop_and_heat_transfer_enhancement_in_helical_corrugated_tubes
dc.description.abstractThe internal flow in corrugated tubes of different helical pitch, covering from the laminar to turbulent regime, was studied in order to characterize the three-dimensional flow and the influence of corrugation geometry on pressure drop and convective heat transfer. With water as working fluid and an imposed wall heat flux, ranging from around 4 to 33 kW/m2, a numerical model was developed with a CFD commercial software, where k−ω SST was used to model turbulence. Experimental tests were performed covering Reynolds numbers in the range from around 300 up to 5000, which allowed to identify the transition region and validate the numerical model. The results show that due to the swirl induced by the corrugation, the critical Reynolds number for the start of transition to turbulent flow is reduced. The thermal performance factor, which quantifies the heat transfer enhancement at the expense of pressure drop, was used to compare the corrugated tubes against the reference case of smooth tube. Based on this, all investigated corrugated geometries performed better than the smooth tube, except for low Reynolds numbers (Re<500) in the laminar regime. Overall, the corrugated tube with the lowest pitch showed a clearly better performance for the intermediate range of Reynolds numbers (1000<Re<2300), being an optimal choice for a wider range of operating conditions in the transitional and turbulent flow regimes.eng
dc.description.sponsorshipAuthors are grateful to FCT - Fundação para a Ciência e a Tecnologia, I.P., for partially financing the research under the framework of the project nr 030171 financed by LISBOA-01-0145-FEDER-030171/PTDC/EME-SIS/30171/2017 and of the project JICAM/0003/2017. This work has been also supported by national funds through FCT under the project 'UIDB/50022/2020'.
dc.identifier.citationGonçalo G. Cruz, Miguel A.A. Mendes, Jos M.C. Pereira, H. Santos, A. Nikulin, Ana S. Moita, Experimental and numerical characterization of single-phase pressure drop and heat transfer enhancement in helical corrugated tubes, International Journal of Heat and Mass Transfer, Volume 179, 2021, 121632, ISSN 0017-9310, https://doi.org/10.1016/j.ijheatmasstransfer.2021.121632.
dc.identifier.doi10.1016/j.ijheatmasstransfer.2021.121632
dc.identifier.issn0017-9310
dc.identifier.urihttp://hdl.handle.net/10400.8/15381
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationAn advanced microCooling System based on inovative NanoFluids and acoustic streaming
dc.relationSMART-HEAT - Surfaces Micro And nanometRically Treated for HEAt Transfer enhancement
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relation.hasversionhttps://www.sciencedirect.com/science/article/pii/S0017931021007353?via%3Dihub
dc.relation.ispartofInternational Journal of Heat and Mass Transfer
dc.rights.uriN/A
dc.subjectCorrugated tubes
dc.subjectPressure drop
dc.subjectHeat transfer enhancement
dc.subjectComputational Fluid Dynamics (CFD)
dc.subjectExperimental setup
dc.subjectTransitional ow regime
dc.titleExperimental and numerical characterization of single-phase pressure drop and heat transfer enhancement in helical corrugated tubeseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAn advanced microCooling System based on inovative NanoFluids and acoustic streaming
oaire.awardTitleSMART-HEAT - Surfaces Micro And nanometRically Treated for HEAt Transfer enhancement
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardURIhttp://hdl.handle.net/10400.8/15378
oaire.awardURIhttp://hdl.handle.net/10400.8/15379
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.citation.endPage25
oaire.citation.startPage1
oaire.citation.titleInternational Journal of Heat and Mass Transfer
oaire.fundingStreamConcurso para Financiamento de Projetos de Investigação Científica e Desenvolvimento Tecnológico em Todos os Domínios Científicos - 2017
oaire.fundingStream2º Concurso para Projetos Colaborativos para Programa do Joint Innovation Center for Advanced Materials - 2017
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_71e4c1898caa6e32
person.familyNameSantos
person.givenNameHelder
person.identifier.orcid0000-0001-6686-7991
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
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The internal flow in corrugated tubes of different helical pitch, covering from the laminar to turbulent regime, was studied in order to characterize the three-dimensional flow and the influence of corrugation geometry on pressure drop and convective heat transfer. With water as working fluid and an imposed wall heat flux, ranging from around 4 to 33 kW/m2, a numerical model was developed with a CFD commercial software, where k−ω SST was used to model turbulence. Experimental tests were performed covering Reynolds numbers in the range from around 300 up to 5000, which allowed to identify the transition region and validate the numerical model. The results show that due to the swirl induced by the corrugation, the critical Reynolds number for the start of transition to turbulent flow is reduced. The thermal performance factor, which quantifies the heat transfer enhancement at the expense of pressure drop, was used to compare the corrugated tubes against the reference case of smooth tube. Based on this, all investigated corrugated geometries performed better than the smooth tube, except for low Reynolds numbers (Re<500) in the laminar regime. Overall, the corrugated tube with the lowest pitch showed a clearly better performance for the intermediate range of Reynolds numbers (1000<Re<2300), being an optimal choice for a wider range of operating conditions in the transitional and turbulent flow regimes.
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