Numerical Investigation of Film Cooling from Two Rows of Holes with Anti-Vortex Holes Attached to the Upstream Row

  • Mostafa Abdelmohimen Hussien Abdelmohime
Keywords: Film Cooling, Two rows, Anti-Vortex, CFD

Abstract

Computational analysis of film cooling effectiveness from two rows of holes inclined with 30o on a flat surface in case of in-line and staggered arrangements has been carried out. The upstream row is supplemented with anti-vortex holes. The addition of anti-vortex holes is presented as a new technique depends on adding two cylindrical holes branching out from the main holes. Three different positions of anti-vortex holes are studied with three different values of velocity ratios. The study is carried out using realizable k-ϵ model in FLUENT commercial code. The numerical model is verified by comparing a single row of film cooling holes results with available experimental works in literature. The results ensure that the staggered arrangement gives higher film cooling effectiveness than the in-line one for all studied velocity ratios. The use of anti-vortex holes increases the film cooling effectiveness. The position of anti-vortex holes shows a significant effect, especially with high velocity ratios.

References

R. J. Goldstein, E. R. G. Eckert, V. L. Eriksen, and J. W. Ramsey, “Film cooling following injection through inclined circular tubes,” Israel Journal of Technology, vol. 8, no. 1-2, pp. 145-154, 1970.

J. Andreopoulous, and W. Rodi, “Experimental investigation of jets in crossflow journal of fluid mechanics,” vol. 138, pp. 93-127, 1984.

B. A. Haven, D. K. Yamagata, M. Kurosaka, S. Yamawaki, and T. Maya, “Anti-kidney pair of vortices in shaped holes and their influence on film cooling effectiveness,” ASME Paper, no. 97-GT-45, pp. V003T09A007, 1997.

C. A. Lemmon, A. Kohli, and K. A. Thole, “Formation of counter-rotating vortices in film-cooling flows,” ASME Paper, no. 99-GT-161, 1999.

S. Dhungel, A. Phillips, S. V. Ekkad, and J. D. Heidmann, “Experimental investigation of a novel anti-vortex film cooling hole design,” ASME Paper, no. GT2007-27419, 2007.

J. D. Heidmann, “A numerical study of anti-vortex film cooling designs at high blowing ratio,” NASA/TM—2008-215209, 2008.

J. D. Heidmann, S. Ekkad, “A novel antivortex turbine film-cooling hole concept,” Journal of Turbomachinery, ASME, vol. 130, July 2008.

A. H. Mostafa, T. Mikhael, S. S. Ayad, and K.M. El-Shazly, “An investigation of the effect of anti-vortex film cooling on flat plate,” Tenth International Congress of Fluid Dynamics (ICFD 10), AinSoukhna, Red Sea, Egypt, pp. 16-19 December, 2010.

P. M. Ligrani, J. M. Wigle, S. Ciriello, S. W. Jackson, “Film-cooling from holes with compound angle orientations: part 1 – results downstream of two staggered rows of holes with 3d spanwise spacing,” ASME J. Heat Transfer, vol. 116, pp. 341-352, May 1994.

C. H. N. Yuen, R. F. Martinez-Botas, “Film cooling characteristics of rows of round holes at various streamwise angles in a crossflow: part I. Effectiveness,” Int J Heat Mass Transfer, vol. 48, pp. 4995-5016, 2005.

J. F. Muska, R. W. Fish, M. Suo, “The additive nature of film cooling from rows of holes,” ASME J. Eng. Power, vol. 98, no. 4, pp. 457- 464, 1976.

W. O. Afejuku, N. Hay, D. Lampard, “Measured coolant distributions downstream of single and double rows of film cooling holes,” ASME J. Eng. Power, vol. 105, no. 1, pp. 172-177, 1983.

B. A. Jubran, B. Y. Maiteh, “Film cooling and heat transfer from a combination of two rows of simple and/or compound angle holes in in-line and/or staggered configuration,” Heat and Mass Transfer, vol. 34, pp. 495-502, 1999.

J. Ahn, I. S. Jung, J. S. Lee, “Film cooling from two rows of holes with opposite orientation angles: injectant behavior and adiabatic film cooling effectiveness,” International Journal of Heat and Fluid Flow, vol. 24, pp. 91-99, 2003.

F.H. Asghar, M.J. Hyder, “Computational study of film cooling from single and two staggered rows of novel semi-circular cooling holes including coolant plenum,” Energy Conversion and Management, vol. 52, pp. 329-334, Jan. 2011.

T. I. P. Shih, Y.L. Lin, M. K. Chyu, and S. Gogineni, “Computations of film cooling from Holes with Struts,” ASME Paper No. 99-GT-282, 1999.

S. Kapadia, S. Roy, and J. Heidmann, “Detached eddy simulation of turbine blade cooling,” AIAA-2003-3632, 36th Thermophysics Conference, Orlando, Florida, June 2003.

B. Johnson, K. Zhang, W. Tian, and H. Hu, "An experimental study of film cooling effectiveness by using PIV and PSP techniques", AIAA 2013-0603, 51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition, Grapevine (Dallas/Ft. Worth Region), Texas, pp. 07-10 January 2013.

Published
2015-04-01
How to Cite
[1]
M. A. H. Abdelmohime, “Numerical Investigation of Film Cooling from Two Rows of Holes with Anti-Vortex Holes Attached to the Upstream Row”, Int. j. eng. technol. innov., vol. 5, no. 2, pp. 87-98, Apr. 2015.
Section
Articles