High-resolution film cooling effectiveness measurements of axial holes embedded in a transverse trench with various trench configurations

Journal of Turbomachinery

Volumn 129, Issue 2, 2007, Pages 294-302

  Waye, Scot K ^a   Bogard, David G ^a  

^a The University of Texas at Austin   (United States)

Author keywords

Adiabatic effectiveness; Film cooling; Transverse trench; Vane

Indexed keywords

COOLANTS; COOLING; JETS; TEMPERATURE MEASUREMENT; TWO DIMENSIONAL;

ADIABATIC EFFECTIVENESS; FILM COOLING; FLOW PARAMETERS; TRANSVERSE TRENCH;

GAS TURBINES;

COOLANTS; COOLING; GAS TURBINES; JETS; TEMPERATURE MEASUREMENT; TWO DIMENSIONAL;

EID: 34249874891     PISSN: 0889504X     EISSN: None     Source Type: Journal    
DOI: 10.1115/1.2464141     Document Type: Article

References (19)

1. Bunker, R. S., 2002, "Film Cooling Effectiveness due to Discrete Holes within a Transverse Trench," ASME Paper GT-2002-30178.
2. Wang, T., Chintalapati, S., Bunker, R.S., and Lee, C.P., 2000, "Jet Mixing in a Trench," Exp. Therm. Fluid Sci., 22, pp. 1-17.
3. Klinger, H., and Hennecke, D. K., 1993, "The Effect of Main Stream Flow Angle on Flame Tube Film Cooling," Proceedings AGARD Conference Heat Transfer and Cooling in Gas Turbines, CP-527.
4. Schulz, A., 2001, "Combustor Liner Cooling Technology in Scope of Reduced Pollutant Formation and Rising Thermal Efficiencies," Ann. N.Y. Acad. Sci., 934, pp. 135-146.
5. Goldstein, R. J., 1971, "Film Cooling," Adv. Heat Transfer, 7, pp. 321-380.
6. Teekaram, A., Forth, C., and Jones, T., 1989, "The Use of Foreign Gas to Simulate the Effects of Density Ratios in Film Cooling," ASME J. Turbomach., 111, pp. 57-62.
7. Papell, S. S., 1960, "Effect on Gaseous Film Cooling of Cooling Injection Through Angled Trenchs and Normal Holes," NASA Report No. NASA-TN-D-299, NASA, Washington, D.C.
8. Blair, M. F., 1974, "An Experimental Study of Heat Transfer and Film Cooling on Large-Scale Turbine Endwalls," ASME J. Heat Transfer, 96, pp. 524-529.
9. Chyu, M. K., Hsing, Y. C., and Bunker, R. S., 1998, "Measurements of Heat Transfer Characteristics of Gap Leakage Around a Misaligned Component Interface," ASME Paper No. 98-GT-132.
10. Seban, R. A., Chan, H. W., and Scesa, S., 1957, "Heat Transfer to a Turbulent Boundary Layer Downstream of an Injection Trench," ASME Paper No. 57-A-36.
11. Lu, Y., Nasir, H., and Ekkad, S. V., 2005, "Film Cooling From a Row of Holes Embedded in Transverse Trenchs," ASME Paper No. GT2005-68598.
12. Robertson, D. R., 2004, "Roughness Impact on Turbine Vane Suction Side Film Cooling Effectiveness," M.S. thesis, University of Texas at Austin, Austin, TX.
13. Waye, S. K., and Bogard, D. G., 2006, "High Resolution Film Cooling Effectiveness Comparison of Axial and Compound Holes on the Suction Side of a Turbine Vane," ASME Paper No. GT2006-90225.
14. Bunker, R. S., 2001, "A Method for Improving the Cooling Effectiveness of a Gaseous Coolant Stream," US Patent No. 6,234,755.
15. Ethridge, M. I., Cutbirth, J. M., and Bogard, D. G., 2001, "Scaling of Performance for Varying Density Ratio Coolants on an Airfoil with Strong Curvature and Pressure Gradient Effects," ASME J. Turbomach., 123, pp. 231-237.
16. Moffat, R. J., 1988, "Describing the Uncertainties in Experimental Results," Exp. Therm. Fluid Sci., 1, pp. 3-17.
17. Baldauf, S., Scheurlen, M., Schulz, A., and Wittig, A., 2002, "Correlation of Film Cooling Effectiveness from Thermographic Measurements at Engine Like Conditions," ASME Paper No. GT-2002-30180.
18. Lutum, E., and Johnson, B. V., 1999, "Influence of the Hole Length-to-Diameter Ratio on Film Cooling With Cylindrical Holes," ASME J. Turbomach., 121, pp. 209-216.
19. Saumweber, C., Schulz, A., and Wittig, S., 2003, "Free-Stream Turbulence Effects on Film Cooling With Shaped Holes," ASME J. Turbomach., 125, pp. 65-73.