The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Effect of Anti-Vortex Hole Angle on the Flat Plate Film Cooling Effectiveness

반와류 홀의 각도가 평판의 막냉각 효율에 미치는 영향 연구

  • Park, Soon Sang (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Park, Jung Shin (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Lee, Sang Hoon (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Moon, Young Gi (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Kwak, Jae Su (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
  • 박순상 (한국항공대학교 항공우주 및 기계공학과) ;
  • 박정신 (한국항공대학교 항공우주 및 기계공학과) ;
  • 이상훈 (한국항공대학교 항공우주 및 기계공학과) ;
  • 문영기 (한국항공대학교 항공우주 및 기계공학과) ;
  • 곽재수 (한국항공대학교 항공우주 및 기계공학과)
  • Received : 2014.01.23
  • Accepted : 2014.08.12
  • Published : 2014.10.01
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Abstract

In this paper, the experimental study was carried to investigate the effect of angle of the anti-vortex holes on the film cooling effectiveness on a flat plate. The pressure sensitive paint technique was applied to measure the film cooling effectiveness. Two anti-vortex hole angles of $0^{\circ}$ and $15^{\circ}$ with respect to the primary hole were considered, and the simple cylindrical hole case was also tested. The blowing ratio based on the cylindrical hole was 0.5 and the same flow rate was kept for all anti-vortex hole cases. Results showed that the film cooling effectiveness for the anti-vortex hole cases were much higher than that of the cylindrical case. Among the anti-vortex hole cases, $15^{\circ}$ angle anti-vortex hole case showed higher film cooling effectiveness than that by the $0^{\circ}$ angle anti-vortex hole case.

Keywords

References

  1. R. J. Goldstein, E. R. G. Eckert, 1974, "Effects of hole geometry and density on three-dimensional film cooling," Int. J. Heat Mass Transfer., Vol. 17, pp. 595-607. https://doi.org/10.1016/0017-9310(74)90007-6
  2. M. Gritsch, C. Schulz, S. Wittig, 1998, "Discharge Coefficient Measurements of Film-Cooling Holes with Expanded Exits," Journal of Turbomachinery, 120, pp. 557-563. https://doi.org/10.1115/1.2841753
  3. K. Vighneswara Rao, G. Sujatha, S. Balamurugan, J. S. Liu, D. C. Crites, L. A. Tapia, M. F. Malak, 2013, "Enhanced film cooling effectiveness with surface trenches", ASME Turbo Expo 2013, GT2013-94530.
  4. B. A. Haven, D. K. Yamagata, M. Kurosaka, S. Yamawaki, T. Maya, 1997, "anti-kidney pair of vortices in shaped holes and their influence on film cooling effectiveness," ASME Paper 97-GT-45.
  5. J. D. Heidmann, S. Ekkad, 2007, "A Novel anti-vortex Turbine Film Cooling Hole Concept," ASME Turbo Expo 2007, GT2007-27528.
  6. C. N. LeBlanc, S. Ramesh, S. V. Ekkad, M. A. Alvin, 2013, "Effect of hole exit shaping on film cooling performance for tripod hole injection over a flat surface," ASME Turbo Expo 2013, GT2013-94456.
  7. A. Dhungel, Y. Lu, W. Phillips, S. V. Ekkad, J. Heidmann, 2007, "Film Cooling From a Row of Holes Supplemented with anti Vortex Holes," ASME Turbo Expo 2007, GT2007-27419.
  8. J. C. Han, A. P. Rallabandi, 2010, "Turbine blade film cooling using PSP technique," Frontiers in Heat and Mass Transfer(FHMT), 1, 013001 (2010), DOI: 10.5098/hmt.v1.1.3001.
  9. T. Liu, J. P. Sullivan, 2005, "Pressure and Temperature Sensitive Paint," Springer.
  10. J. Y. Ahn, S. Mhetras, J. C. Han, 2004, "Film-Cooling Effectiveness On a Gas Turbine Blade Tip Using Pressure Sensitive Paint," ASME Paper No. GT2004-53249.
  11. G. Wagner, G. Vogel, D. Chanteloup and A. Bolcs, 2002, "Pressure sensitive paint(PSP) and transient liquid crystal technique(TLC) for measurement of film cooling performances," The 16th Symposium on Measuring Techniques in Transonic and Supersonic Flow in Cascades and Turbomachines.
  12. S. D. Park, K. S. Lee, H. B. Kim, J. S. Kwak, J. H. Kim, 2006, "Measurement of the Film Cooling Effectiveness on a Flat Plate using Pressure Sensitive Paint," The Korean Society of Propulsion Engineers, Vol. 12, No. 5, pp. 67-72.

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