Turbine blade showerhead film cooling: Influence of hole angle and shaping

International Journal of Heat and Fluid Flow

Volumn 28, Issue 5, 2007, Pages 922-931

  Lu, Yiping ^a   Allison, David ^a   Ekkad, Srinath V ^a  

^a LOUISIANA STATE UNIVERSITY   (United States)

Author keywords

Blade; Film cooling; Holes; Turbine

Indexed keywords

FLOW PATTERNS; HEAT TRANSFER COEFFICIENTS; REYNOLDS NUMBER; THERMOGRAPHY (IMAGING); TURBINES; TURBOMACHINE BLADES;

FLOW DIRECTION; STAGNATION;

COOLING;

COOLING; FLOW PATTERNS; HEAT TRANSFER COEFFICIENTS; REYNOLDS NUMBER; THERMOGRAPHY (IMAGING); TURBINES; TURBOMACHINE BLADES;

EID: 34548608683     PISSN: 0142727X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ijheatfluidflow.2007.01.002     Document Type: Article

References (19)

1. Bunker R.S. A review of shaped hole turbine film-cooling technology. ASME Journal of Heat Transfer 127 (2005) 441-453
2. Cruse, M.W., Yuki, U.M., Bogard, D.G., 1997. Investigation of various parametric influences on leading edge film cooling. ASME Paper 97-GT-296.
3. 2 injection through compound angle holes using a transient liquid crystal image method. ASME Journal of Turbomachinery 119 3 (1997) 580-586
4. Ekkad S.V., Han J.C., and Du H. Detailed film cooling measurements on a cylindrical leading edge model: effect of free-stream turbulence and coolant density. ASME Journal of Turbomachinery 120 (1998) 799-807.F
5. Ekkad S.V., Ou S., and Rivir R.B. A transient infrared thermogrpahy method for simultaneous film cooling effectiveness and heat transfer coefficient measurements from a single test. ASME Journal of Turbomachinery 126 (2004) 597-603
6. Funazaki K., Yokota M., and Yamawaki S. The effect of periodic wake passing on film effectiveness of discrete cooling holes around the leading edge of a blunt body. ASME Journal of Turbomachinery 119 (1997) 292-301
7. Gartshore I., Salcudean M., McLean I., and Zhang K. An experimental study of film cooling effectiveness near the leading edge of a turbine blade. ASME Journal of Turbomachinery 116 (1994) 71-79
8. Han J.C., Dutta S., and Ekkad S.V. Gas Turbine Heat Transfer and Cooling Technology (2000), Taylor and Francis, New York, NY
9. Karni, J., Goldstein, R.J., 1989, Surface injection effect on mass transfer from a cylindrical in crossflow: a simulation of film cooling in the leading edge region of a turbine blade, ASME Paper No. 89-GT-276.
10. Kline S.J., and McClintock F.A. Describing uncertainties in single sample experiments. Mechanical Engineering 75 (1953) 3-8
11. Mehendale A.B., and Han J.C. Influence of high mainstream turbulence on leading edge film cooling heat transfer. ASME Journal of Turbomachinery 114 (1992) 707-715
12. Mick W.J., and Mayle R.E. Stagnation film cooling and heat transfer, Including its effect within the hole pattern. ASME Journal of Turbomachinery 110 (1988) 66-72
13. Mouzon, B.D., Terrell, E.J., Albert, J.E., Bogard, D.G., 2005. Net heat flux reduction and overall effectiveness for a turbine blade leading edge. ASME Paper GT2005-69002.
14. Ou S., and Rivir R.B. Leading edge film cooling heat transfer with high free-stream turbulence using a transient liquid crystal image method. International Journal of Heat and Fluid Flow 22 (2001) 614-623
15. Ou S., Mehendale A.B., and Han J.C. Influence of high mainstream turbulence on leading edge film cooling heat transfer: effect of film hole row location. ASME Journal of Turbomachinery 114 (1992) 716-723
16. Reiss H., and Bolcs A. Experimental study of a showerhead cooling on a circular cylinder comparing several configurations using cylindrical and shaped holes. ASME Journal of Turbomachinery 122 (2000) 161-169
17. Vedula, R.P., Metzger, D.E., 1991. A method for the simultaneous determination of local effectiveness and heat transfer distributions in a three temperature convective situations. ASME Paper 91-GT-345.
18. York, W.D., Leylek, J.H., 2002a. Leading-edge film-cooling physics: Part I - adiabatic effectiveness. ASME Paper GT-2002-30166.
19. York, W.D., Leylek, J.H., 2002b. Leading-edge film-cooling physics: Part II - heat transfer coefficient. ASME Paper GT-2002-30167.