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http://dx.doi.org/10.20910/JASE.2020.14.3.1

A Comparative Study on the Flow and Heat Transfer Performance Characteristics of Vortex Generators and Guide Vane in Fin-Tube  

Bae, JiHwan (Department of Aerospace Engineering, Pusan National University)
Oh, YeongTaek (Department of Aerospace Engineering, Pusan National University)
Lee, ChangHyeong (Department of Aerospace Engineering, Pusan National University)
Lee, DeukHo (Department of Aerospace Engineering, Pusan National University)
Kim, KuiSoon (Department of Aerospace Engineering, Pusan National University)
Publication Information
Journal of Aerospace System Engineering / v.14, no.3, 2020 , pp. 1-9 More about this Journal
Abstract
In this paper, the effects of the delta winglet vortex generator, the airfoil vortex generator and the guide vanes on the friction factor and the Colburn factor in the fin-tube flow were studied. The vortex generator and guide vane were non-dimensionalized based on the channel height and tube diameter, and locations were selected according to the authors' suggestions. The Reynolds number based on the inlet velocity and the tube diameter was selected in the range of 1400-8000. As a result, the friction factor resulted in a 4.7% decrease in guide vanes at the Reynolds number 8000 over the conventional fin-tube, and the Colburn factor resulted in a 33% increase in the delta winglet vortex generator at the Reynolds number 3800 over the conventional fin-tube.
Keywords
Heat Exchanger; Fin-Tube; Vortex Generator; Heat Transfer; CFD;
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Times Cited By KSCI : 4  (Citation Analysis)
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