Browse > Article
http://dx.doi.org/10.5916/jkosme.2012.36.6.808

Drag Reduction on a Square Prism Using a Detached Splitter Plate  

Ro, Ki-Deok (경상대학교 기계시스템공학과.해양산업연구소)
Yoon, Seong-Min (경상대학교 기계시스템공학과)
Choi, Dong-Hyeon (경상대학교 기계시스템공학과)
Kim, Jae-Hyeon (경상대학교 기계시스템공학과)
Sim, Eun-Chong (경상대학교 기계시스템공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.36, no.6, 2012 , pp. 808-813 More about this Journal
Abstract
The Characteristics of the drag reduction of a square prism having a detached splitter plate at the wake side were investigated by measuring of lift and drag on the square prism. The experimental parameters were the width ratios(H/B=0.5~1.5) of splitters to the prism width and the gap ratios (G/B=0~2) between the prism and the splitter plate. As the results the amplitude of the lift on the square prism having a detached splitter plate was remarkably decreased by comparison with the prototypical square prism. The drag reduction rate of the square prism was increased with H/B in case of the same G/B, and was increased and decreased with G/B in case of the same H/B. The maximum drag reduction rate was represented by 24.2% at H/B=1.5 and G/B=0.5.
Keywords
Drag reduction; Separated flow; Unsteady flow; Square prism; Splitter plate;
Citations & Related Records
연도 인용수 순위
  • Reference
1 B. Khalighi, S. Zang, C. Korokilas et al., "Experimental and computational study of unsteady wake flow behind a bluff body with a drag reduction device," Society of Automotive Engineers, 2001-01-1042, 2001.
2 T. Tamura, T. Miyagi, "The effect of turbulence on aerodynamic forces on a square cylinder with various corner shapes," Journal of Wind Engineering and Industrial Aerodynamics 83, pp. 135-145, 1999.   DOI   ScienceOn
3 K.-D. Ro, K.-S. Kim, "Fluid force reduction characteristics of a square prism having fences on the corner", Journal of the Korean Society of Marine Engineering, vol. 30, no. 3, pp. 389-395, 2006 (in Korean).
4 W.-C. Park, "Effect of the length of a splitter plate on drag reduction", Transactions of the Korean Society of Mechanical Engineers B", vol. 17, no. 11, pp. 2809-2815, 1993 (in Korean).
5 C. J. Apelt and G. S. West, "The effects of wake splitter plates on bluff-body flow in the range $10^{4}$$10^{4}$. Part 2," J. Fluid Mech., vol. 71, part 1, pp. 145-160, 1975.   DOI   ScienceOn
6 Con J. Doolan, "Flat-Plate interaction with the near wake of a square cylinder," The American Institute of Aeronautics and Astronautics Journal, vol. 47, no. 2, pp. 475-478, 2009.   DOI   ScienceOn
7 M. Gad-el-Hak, "Modern developments in flow control," Applied Mechanics Reviews, 49, No. 7, pp. 365, 1996.   DOI   ScienceOn