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3D CFD Simulation of Heat Transfer and Friction Characteristics of Laminar Flow of Water through a Circular Duct with Centre-Cleared Twin Twisted Tape

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dc.contributor.author Bhattacharyya, Suvanjan
dc.date.accessioned 2023-10-16T10:26:35Z
dc.date.available 2023-10-16T10:26:35Z
dc.date.issued 2015-12
dc.identifier.uri https://www.ijatr.org/index.php/journal/article/view/12
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/12453
dc.description.abstract Heat transfer behavior of laminar flow inside circular duct with centre-cleared twin twisted tape (CTTT) swirl generator was investigated numerically. The governing equations were solved with a finite-volume-based numerical method. A three-dimensional non uniform grid was generated, in order to critically examine the flow and heat transfer. The centre-cleared twin twisted tapes were tested in the current work; investigations were performed in the Reynolds number range of 100- 1,000 with four different CTTTs at twist ratio (TR) of H/W = 1.0, 2.0, 3.0 and 4.0. Water is used as working fluid (Pr = 7). The effects of Reynolds number, Nusselt number, friction factor, convective heat transfer coefficient were examined and discussed. The use of CTTT was found to increase the heat transfer considerably when compared with plain tube. The Nusselt number increased with the increase of Reynolds number. The overall enhancement ratio has been calculated in order to discuss the overall effect of CTTT and the working parameters. The present findings would be useful inputs for the design of solar thermal heaters and heat exchangers. en_US
dc.language.iso en en_US
dc.publisher IJATR en_US
dc.subject Mechanical Engineering en_US
dc.subject Swirl flow en_US
dc.subject Centre-cleared en_US
dc.subject Twin Twisted Tape en_US
dc.subject Friction factor en_US
dc.subject Thermal enhancement efficiency en_US
dc.title 3D CFD Simulation of Heat Transfer and Friction Characteristics of Laminar Flow of Water through a Circular Duct with Centre-Cleared Twin Twisted Tape en_US
dc.type Article en_US


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