A new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow
Angle of attack; Boundary layers; Drops; Finite volume method; Heat transfer coefficients; Laminar flow; Numerical methods; Pressure drop; Reynolds number; Enhancing heat transfer; Heat transfer augmentation; Heat Transfer enhancement; Hydraulic boundary layers; Rectangular winglets; Sudden expansio...
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Korean Society of Mechanical Engineers
2023
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my.uniten.dspace-245402023-05-29T15:24:22Z A new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow Ramanathan S. Thansekhar M.R. Kanna P.R. Gunnasegaran P. 55811246800 6504354111 8882100100 35778031300 Angle of attack; Boundary layers; Drops; Finite volume method; Heat transfer coefficients; Laminar flow; Numerical methods; Pressure drop; Reynolds number; Enhancing heat transfer; Heat transfer augmentation; Heat Transfer enhancement; Hydraulic boundary layers; Rectangular winglets; Sudden expansion; Thermo-hydraulic performance; Vortex generators; Vortex flow The relative positions of leading edges and trailing edges of rectangular vortex generators (VG) in the winglet form play a crucial role in modifying thermal and hydraulic boundary layers thereby affecting the heat transfer augmentation and pressure drop in a sudden expansion channel having expansion ratio (ER) 2:1. A numerical simulation was carried out for solving the momentum and energy equations of a three dimensional vortex- laminar flow (Reynolds number < 190) with a finite volume method based commercial code FLUENT 16.2. Reynolds number, angle of attack and VG configuration have been considered as influential parameters affecting the thermo-hydraulic performance of the sudden expansion channel due to the combined effect of primary recirculation and secondary vortex flow. The heat transfer enhancement along with corresponding pressure drop penalty was compared for the toe-out and toe-in configurations at various Reynolds (Re) numbers and angle of attacks (?). Eventually irrespective of configurations, rectangular winglet VGs are found to have better overall performance at ? = 30� and ? = 45� in both toe-out and toe-in configurations due to strong secondary vortex flow. � 2019, KSME & Springer. Final 2023-05-29T07:24:22Z 2023-05-29T07:24:22Z 2019 Article 10.1007/s12206-019-0736-9 2-s2.0-85070379036 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070379036&doi=10.1007%2fs12206-019-0736-9&partnerID=40&md5=36b6ed6b8a181bdd010687d312482110 https://irepository.uniten.edu.my/handle/123456789/24540 33 8 3913 3925 Korean Society of Mechanical Engineers Scopus |
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Angle of attack; Boundary layers; Drops; Finite volume method; Heat transfer coefficients; Laminar flow; Numerical methods; Pressure drop; Reynolds number; Enhancing heat transfer; Heat transfer augmentation; Heat Transfer enhancement; Hydraulic boundary layers; Rectangular winglets; Sudden expansion; Thermo-hydraulic performance; Vortex generators; Vortex flow |
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55811246800 |
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55811246800 Ramanathan S. Thansekhar M.R. Kanna P.R. Gunnasegaran P. |
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Article |
| author |
Ramanathan S. Thansekhar M.R. Kanna P.R. Gunnasegaran P. |
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Ramanathan S. Thansekhar M.R. Kanna P.R. Gunnasegaran P. A new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow |
| author_sort |
Ramanathan S. |
| title |
A new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow |
| title_short |
A new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow |
| title_full |
A new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow |
| title_fullStr |
A new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow |
| title_full_unstemmed |
A new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow |
| title_sort |
new method of enhancing heat transfer in sudden expansion channel using vortex generators with toe-out and toe-in configurations by acquiring perquisites of recirculation and secondary vortex flow |
| publisher |
Korean Society of Mechanical Engineers |
| publishDate |
2023 |
| _version_ |
1806428295072317440 |
| score |
13.214268 |