Browse > Article
http://dx.doi.org/10.6108/KSPE.2019.23.4.028

Numerical Study on Heat Transfer and Flow Characteristics of Pin Fin with Swept Airfoil Shape Vortex Generator  

Lee, Changhyeong (Department of Aerospace Engineering, Pusan National University)
Oh, Yeongtaek (Department of Aerospace Engineering, Pusan National University)
Bae, Jihwan (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 the Korean Society of Propulsion Engineers / v.23, no.4, 2019 , pp. 28-34 More about this Journal
Abstract
In this study, pin-fin arrays, which are widely used for cooling turbine blades, were studied. The vortex generator in pin-fin arrays is located in front of the circular tube. The cross-section of the vortex generator is NACA-9410. The purpose of this study is to analyze heat transfer performance and flow characteristics of pin-fin arrays. The position of vortex generator is changed with the vertical flow direction on the bottom wall. Pin-fin arrays were calculated with 6000, 10000 and 15000 Reynolds number. The commercial program ANSYS v18.0 CFX and the turbulence model $k-{\omega}$ SST were used. As a result, the heat transfer performance increased up to 5.8% and pressure loss increased less than 1%.
Keywords
CFD; Heat transfer; Pin-Fin; Vortex Generator;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Xu, J., Yao, J., Su, P., Lei, J., Wu, J., and Gao, T., "Heat transfer And Pressure Loss Characteristics Of Pin-fins With Different Shapes in a Wide Channel," ASME Turbo Expo, North Carolina, U.S.A., GT2017-63761, Jun. 2017.
2 Sparrow, E.M. and Ramsey, J.W., Altemani, C.A.C., “Experiments on In-line Pin Fin Arrays and Performance Comparisons with Staggered Arrays,” ASME Journal of Heat Transfer, Vol. 102, No. 1, pp. 44-50, 1980.   DOI
3 He, Y.-L., Chu, P., Tao, W.Q., Zhang, Y.W., and Xie, T., “Analysis of Heat Transfer and Pressure Drop for Fin and Tube Heat Exchangers with Rectangular Winglet-type Vortex Generator,” Applied Thermal Engineering, Vol. 61, No. 2, pp. 770-783, 2013.   DOI
4 Fiebig, M., “Embedded Vortices in Internal Flow: Heat Transfer and Pressure Loss Enhancement,” Journal of Heat and Fluid Flow, Vol. 16, No. 5, pp. 376-388, 1995.   DOI
5 Joardar, A. and Jacobi, A.M., “Heat Transfer Enhancement by Winglet-type Vortex Generator Arrays in Compact Plain-fin and Tube Heat Exchangers,” International Journal of Refrigeration, Vol. 3, No. 1, pp. 87-97, 2008.   DOI
6 He, Y.L., Han, H., Tao, W.Q. and Zhang, Y.W., “Numerical Study of Heat Transfer Enhancement by Punched Winglet-type Vortex Generator Arrays in Fin and Tube Heat Exchangers,” International Journal of Heat and Mass Transfer, Vol. 55, No. 21-22, pp. 5449-5458, 2012.   DOI
7 Sarangi, S.K. and Mishra, D.P., "Effect of Winglet Location on Heat Transfer of a Finand-tube Heat Exchanger," Applied Thermal Engineering, Vol. 116, pp. 528-540, 2017.   DOI
8 ANSYS CFX V15.0, "ANSYS CFX Reference Guide," ANSYS, Inc., Canonsburg, P.A., U.S.A., 2013.
9 Goldstein, R.J., Jabbari, M.Y. and Chen, S.B., “Convective Mass Transfer and Pressure Loss Characteristics of Staggerd Short Pin-fin Arrays,” Journal of Heat Mass Transfer, Vol. 37, No. 1, pp. 149-160, 1994.   DOI
10 Incropera, F.P., Dewitt, D.P., Bergman, T.L. and Lavine, A.S., Fundamentals of Heat and Mass Transfer, 6th ed., John Wiley & Sons Inc., New York, N.Y., U.S.A., 2007.
11 Simoneau, R.J. and VanFossen, G.J., “Effect of Location in an Array on Heat Transfer to a Short Cylinder in Crossflow,” ASME Journal of Heat Transfer, Vol. 106, No. 6, pp. 42-48, 1984.   DOI