Browse > Article
http://dx.doi.org/10.5293/kfma.2014.17.2.012

Effects of Geometry of Anti-Vortex Holes on Film-Cooling Effectiveness  

Kim, Jun-Hee (Dept. of Mechanical Engineering, Graduate School, Inha Univ.)
Kim, Sun-Min (Dept. of Mechanical Engineering, Graduate School, Inha Univ.)
Kim, Kwang-Yong (Dept. of Mechanical Engineering, Inha Univ.)
Publication Information
The KSFM Journal of Fluid Machinery / v.17, no.2, 2014 , pp. 12-23 More about this Journal
Abstract
A parametric study on anti-vortex holes for turbine blade cooling was investigated numerically. Three-dimensional Reynolds-averaged Navier-Stokes equations and shear stress transport turbulence model were used for analysis of anti-vortex film cooling. Validation of numerical results was carried out comparing with experimental data. The cooling performance of anti-vortex holes was assessed by two geometric variables, the ratio of diameters of holes and the lateral distances between the primary hole and anti-vortex hole at blowing ratios of 0.5 and 1.0. The results showed that the spatially-averaged film-cooling effectiveness increases as the ratio of the diameters increases and the distance between the primary hole and anti-vortex hole decreases.
Keywords
Anti-vortex holes; Reynolds-averaged Navier-Stokes equations; Film-cooling effectiveness; Blowing ratio;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Baheri, S., Alavi Tabrizi, S. P., and Jubran, B. A., 2008, "Film cooling effectiveness from trenched shaped and compound holes," Heat Mass Transfer, Vol. 44, Issue 8, pp. 989-998.   DOI
2 Nasir, H., Ekkad, S. V., and Acharya, S., 2001, "Effect of Compound Angle Injection of Flat Surface Film Cooling with Large Streamwise Injection Angle," Experimental Thermal and Fluid Science, Vol. 25, Issues. 1-2, pp. 23-29.   DOI
3 Walters, D. K., and Leylek, J. H., 2001, "A Detailed Analysis of Film-Cooling Physics: Part I-Streamwise Injection With Cylindrical Holes," Journal of Turbomachinery, Vol. 112, Issue 1, pp. 102-112.
4 Yuen, C. H. N., Martinez-Botas, R. F., and Whitelaw, J. H.. 2001, "Film Cooling Effectiveness Downstream of Compound and Fan-shaped Holes." ASME Turbo Expo, New Orleans, Louisiana, 2001-GT-0131.
5 Brauckmann, D., and Wolfersdorf, J., 2005, "Influence of Compound Angle on Adiabatic Film Cooling Effectiveness and Heat Transfer Coefficient for a Row of Shaped Film Cooling Holes," ASME Turbo Expo, Reno-Tahoe, Nevada, USA, GT2005-68036.
6 Japanese Patent Application No. 332530.
7 Kusterer, K., Bohn, D., Sugimoto, T., and Tanaka, R., 2006, "Double-Jet Ejection of Cooling Air for Improved Film-Cooling," ASME Turbo Expo 2006, Barcelona, Spain, GT2006-90854.
8 Kusterer, K., Bohn, D., Sugimoto, T., and Tanaka, R., 2007, "Influence of Blowing Ratio on The Double-Jet Ejection of Cooling Air," ASME Turbo Expo 2007, Montreal, Canada, GT2007-27301.
9 Kusterer, K., Elyas, A., Bohn, D., Sugimoto, T., and Tanaka, R.. 2008, "Double-Jet Film-Cooling for Highly Efficient Film-Cooling with Low Blowing Ratios," ASME Turbo Expo 2008, Berlin, Germany, GT2008-50073.
10 Kusterer, K., Elyas, A., Bohn, D., Sugimoto, T., Tanaka, R., and Kazari, M., 2009, "A Parametric Study on the Influence of the Lateral Ejection Angle of Double-Jet Holes on the Film Cooling Effectiveness for High Blowing Ratios," ASME Turbo Expo 2009, Orlando, Florida, USA, GT2009-59321.
11 Kusterer, K., Elyas, A., and Bohn, D., 2010, "Film Cooling Effectiveness Comparison Between Shaped and Double Jet Film Cooling Holes In A Row Arrangement," ASME Turbo Expo 2010, Glasgow, UK, GT2010-22604.
12 Wang, Z., Liu, J. J., An, B. T., and Zhang, C., 2011, "Effects of Axial Row-spacing For Double-jet Film-cooling On The Cooling Effectiveness," ASME Turbo Expo 2011, Vancouver, Canada, GT2011-46055.
13 Heidmann, J. D., 2008, "A Numerical Study of Anti-vortex Film Cooling Designs At High Blowing Ratio," ASME Turbo Expo, Berlin, Germany, GT2008-50845.
14 Lee, K. D., and Kim, K. Y., 2011, "Surrogate based optimization of a laidback fan-shaped hole for film-cooling," International Journal of Heat and Fluid Flow, Vol. 32, Issue 1, pp. 226-238.   DOI   ScienceOn
15 Dhungel, A., Lu, Y., Phillips, W., Ekkad, S. V., and Heidmann, J., 2007, "Film Cooling From A Row of Holes Supplemented With Anti Vortex Holes," ASME Turbo Expo, Montreal, Canada, GT2007-27419.
16 CFX-11.0 Solver Theory, Ansys inc,. 2006.
17 Bardina, J. E., Huang, P. G., and Coakley, T. J., 1997, "Turbulence Modeling Validation,", AIAA 97-2121.
18 Lee, K. D., Choi, D. W., and Kim, K. Y., 2013, "Optimization of Ejection Angles of Double-jet Film-cooling Holes Using RBNN Model", International Journal of Thermal Sciences, Vol. 73, pp. 69-78.   DOI   ScienceOn
19 Baheri, S., Alavi Tabrizi,. S. P., and Jubran, B. A., 2008, "Film cooling effectiveness from trenched shaped and compound holes," Heat Mass Transfer, Vol. 44, pp. 989-998.   DOI
20 Gritsch, M., Colban, W., Schar, H., and Dobbeling, K., 2005, "Effect of Hole Geometry on the Thermal Performance of Fan-Shaped Film Cooling Holes," Journal of Turbomachinery, Vol. 127, pp. 718-725.   DOI