Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer

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dc.contributor.author Hilo, Ali Kareem
dc.contributor.author Talib, Abd Rahim Abu
dc.contributor.author Acosta Iborra, Antonio
dc.contributor.author Sultan, Mohammed Thariq Hameed
dc.contributor.author Hamid, Mohd Faisal Abdul
dc.date.accessioned 2021-05-27T12:06:28Z
dc.date.available 2022-01-01T00:00:04Z
dc.date.issued 2020-01-01
dc.identifier.bibliographicCitation Hilo, A. K., Abu Talib, A. R., Acosta Iborra, A., Hameed Sultan, M. T. & Abdul Hamid, M. F. (2020). Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer. Energy, vol. 190, 116294.
dc.identifier.issn 0360-5442
dc.identifier.uri http://hdl.handle.net/10016/32778
dc.description.abstract The turbulent fluid flow and heat transfer were numerically studied through backward-facing step combined with various corrugated walls. The governing equation was solved using Finite Volume Method (FVM) and the SIMPLE algorithm was applied to investigate the effect of backward-facing step with corrugated downstream on heat transfer characteristics. A constant heat flux was applied on the downstream wall, while the other walls were considered as adiabatic surfaces. Parameters such as corrugated design, amplitude height (1, 2, 3, 4 and 5 mm) and Reynolds number (Re) in the range of 5000 to 20,000 were used. The performance evaluation criteria (PEC) were estimated to show the heat transfer augmentation. The results indicated that using a corrugated wall with a backward-facing step increased significantly the heat transfer accompanied by a slight increase in the skin friction coefficient simultaneously. The best heat transfer augmentation was observed for the trapezoidal corrugation at 4 mm amplitude height and 20 mm pitch diameter. Combining the corrugated wall with backward-facing step enhanced the Nusselt number (Nu) up to 62% at Re = 5000. The performance evaluation criteria increased with the increase of amplitude height until it reached 4 mm and then decreased steeply.
dc.format.extent 10
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2019 Elsevier Ltd.
dc.rights Atribución-NoComercial-SinDerivadas 3.0 España
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.other Backward-facing step
dc.subject.other Corrugated wall
dc.subject.other Fluid flow
dc.subject.other Heat transfer enhancement
dc.title Effect of corrugated wall combined with backward-facing step channel on fluid flow and heat transfer
dc.type article
dc.subject.eciencia Química
dc.identifier.doi https://doi.org/10.1016/j.energy.2019.116294
dc.rights.accessRights openAccess
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 1
dc.identifier.publicationissue 116294
dc.identifier.publicationlastpage 10
dc.identifier.publicationtitle Energy
dc.identifier.publicationvolume 190
dc.identifier.uxxi AR/0000025484
dc.affiliation.dpto UC3M. Departamento de Ingeniería Térmica y de Fluidos
dc.affiliation.grupoinv UC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticos
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