Investigation of Heat Transfer and Swirl Flow Between Concentric Cylinders

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dc.contributor.authorJasim, Mohanad Abdulkhudhur
dc.contributor.authorAlaiwi, Yaser
dc.contributor.authorAl-Khafaji, Zainab
dc.date.accessioned2025-06-11T13:16:17Z
dc.date.available2025-06-11T13:16:17Z
dc.date.issued2025
dc.departmentEnstitüler, Lisansüstü Eğitim Enstitüsü, Makine Mühendisliği Ana Bilim Dalı
dc.description.abstractSwirl flows, especially in decaying forms, have shown promise in enhancing thermal performance with minimal mechanical complexity, providing a practical alternative to traditional forced convection methods in annular geometries. The swirling flows are created by introducing tangential air inflow, which promotes mixing and disrupts thermal boundary layers, thereby increasing heat transfer. This approach is valuable in applications where efficient thermal management is critical, such as in heat exchangers, reactors, and rotating machinery. This study highlights the potential effectiveness of swirling decaying flows in enhancing heat transfer, as initially proposed by Talbot. Local Nusselt numbers were experimentally measured in an annular space between concentric cylinders under a constant heat flux boundary condition. Swirling air motion was generated by tangential inlet slots, allowing air to enter with varying slot numbers and tangency angles. The resulting flow field within the annulus maintained a Reynolds number below 2000, aligning with the study's focus on low-Reynolds, laminar flow conditions for examining the impact of swirl flow on heat transfer between concentric cylinders. Careful consideration was given to keeping track of errors from their collection of sources and their propagation in the results. In heat transfer enhancement, swirling flow showed real promise; augmentation of up to 24 % could be achieved, while in power consumption, swirling flow was considerably more demanding than the fully developed non-working laminar flow. Even with the acceptable accuracy of the experimental measurements, the data reduction yielded substantial errors - up to 300 % of the calculated value - thereby undermining the results and the assumptions.
dc.identifier.citationJasim, M. A., Alaiwi, Y., & Al-Khafaji, Z. (2025). Investigation of Heat Transfer and Swirl Flow Between Concentric Cylinders. Jordan Journal of Mechanical & Industrial Engineering, 19(1).
dc.identifier.doi10.59038/jjmie/190102
dc.identifier.endpage26
dc.identifier.issn1995-6665
dc.identifier.issue1
dc.identifier.scopus2-s2.0-86000765001
dc.identifier.scopusqualityQ2
dc.identifier.startpage13
dc.identifier.urihttps://hdl.handle.net/20.500.12939/5768
dc.identifier.volume19
dc.identifier.wosWOS:001478186900001
dc.identifier.wosqualityQ3
dc.indekslendigikaynakScopus
dc.institutionauthorJasim, Mohanad Abdulkhudhur
dc.institutionauthorAlaiwi, Yaser
dc.language.isoen
dc.publisherHashemite University
dc.relation.ispartofJordan Journal of Mechanical and Industrial Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Öğrenci
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectHeat Transfer Enhancement
dc.subjectSwirling Flow
dc.subjectUncertainty Analysis
dc.titleInvestigation of Heat Transfer and Swirl Flow Between Concentric Cylinders
dc.typeArticle

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