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Heat Transfer Augmentation Dealing With Aerodynamic Device (Flag Vortex Generator)
Subject area: Science,Engineering and Technology · Area of research: Heat Power Engineering
Abstract
The use of flexible plates or ?flags? as vortex generators inside a channel was successfully demonstrated as an alternative heat transfer augmentation technique. This paper aims to present a brief review of flag vortex generators for thermal augmentation. Although flag dynamics is widely reported, the review reveals that this heat transfer technique is not widely explored, specifically on the heat transfer performance of flags. Extensive and intensive experimental results are lacking to validate numerical and theoretical predictions. This paper further provides methods of Heat Transfer augmentation, with their classification. Non-exhaustive list of existing gaps, challenges, and potential research areas in using flags as vortex generators for thermal enhancement, which aims to guide future research directions in this thermal-fluid-structure problem. There is a need to conduct further investigations on this technique to fully establish its thermal characteristics.
Keywords
Flags, VG, Heat Transfer
References
[1] Jae Bok Lee et al, “Heat transfer enhancement by flexible flags clamped vertically in a Poiseuille channel flow”, international journal of heat and mass transfer 107 (2017) 391–402.
[2] Jae Bok Lee, Sung Goon Park, Hyung Jin Sung, “Heat transfer enhancement by asymmetrically clamped flexible flags in a channel flow”, international journal of heat and mass transfer 116 (2018) 1003–1015.
[3] Emmanuel Virot, Xavier amandolese, pascal hémon, “Fluttering flags: An experimental study of fluid forces”, Journal of Fluid sand structures43(2013)385–401.
[4] Zheng Lietal, “A flapping vortex generator for heat transfer enhancement in a rectangular airside fin”, International Journal of Heat and Mass Transfer 118 (2018) 1340–1356.
[5] Atul Kumar Soti, Rajneesh Bhardwaj, John Sheridan, “Flow-induced deformation of a flexible thin structure as manifestation of heat transfer enhancement”, International Journal of Heat and Mass Transfer 84 (2015) 1070–1081.
[6] Zhen Pang, Lai-bing Jia, and Xie-zhen Yin, “flutter instability of rectangle and trapezoid flags in uniform flow”, physics of fluids 22, 121701 (2010).
How to cite this paper
@article{1702664,
author = {Piyush Pruthviraj Waghmare, Prof. Mudassar Gazi Sahab Qaimi, Prof. Avinash Patil},
title = {Heat Transfer Augmentation Dealing With Aerodynamic Device (Flag Vortex Generator)},
journal = {Iconic Research And Engineering Journals},
year = {2021},
volume = {4},
number = {8},
pages = {87-91},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1702664.pdf},
abstract = {The use of flexible plates or ?flags? as vortex generators inside a channel was successfully demonstrated as an alternative heat transfer augmentation technique. This paper aims to present a brief review of flag vortex generators for thermal augmentation. Although flag dynamics is widely reported, the review reveals that this heat transfer technique is not widely explored, specifically on the heat transfer performance of flags. Extensive and intensive experimental results are lacking to validate numerical and theoretical predictions. This paper further provides methods of Heat Transfer augmentation, with their classification. Non-exhaustive list of existing gaps, challenges, and potential research areas in using flags as vortex generators for thermal enhancement, which aims to guide future research directions in this thermal-fluid-structure problem. There is a need to conduct further investigations on this technique to fully establish its thermal characteristics.},
keywords = {Flags, VG, Heat Transfer},
month = {February},
}