Impingement cooling by round jet with longitudinal swirling strip

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dc.contributor.authorKunnarak, Kengkla
dc.contributor.authorSomravysin, Prachya
dc.contributor.authorEiamsa-Ard, Smith
dc.contributor.authorChuwattanakul, Varesa
dc.date.accessioned2026-08-06T10:19:35Z
dc.date.available2026-08-06T10:19:35Z
dc.date.issued2018-03-01
dc.description.abstractThe objective of this research is to study the effect of swirling impinging jet on the heat transfer in the impinged plated by using thermochromic liquid crystal (TLC) sheet. In the experiments, the nozzle having a diameter of 20 mm (D) was installed with four-channel twisted tape as a longitudinal swirling strip. The jet impingement was performed at jet-to-plate distances (L/D) of 2, 3, 4, 5, 6 and 7, and constant Reynolds number (Re) of 5000. The experimental results showed that the swirling jet induced by the four-channel twisted tape gave higher heat transfer rates than the conventional jet at the same operating conditions. The highest average heat transfer rate was obtained at the jet-to-plate distance (L/D) of 2.
dc.identifier.citationInternational Journal of Mechanical Engineering and Robotics Research, 7(2), 179-183, 2018
dc.identifier.doi10.18178/ijmerr.7.2.179-183
dc.identifier.issn22780149
dc.identifier.other2-s2.0-85043764055
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/8479
dc.sourceInternational Journal of Mechanical Engineering and Robotics Research
dc.subjectHeat transfer
dc.subjectSwirl generator
dc.subjectSwirling impinging jet
dc.subjectThermochromic liquid crystal
dc.titleImpingement cooling by round jet with longitudinal swirling strip
dc.typeArticle

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