The showerhead region of a film-cooled turbine vane in a gas turbine engine involves a complex interaction between mainstream flow and coolant jets. This flow field was studied using three component laser Doppler velocimeter measurements in a simulated turbine vane test facility. Measurements were focused around the stagnation row of holes. Low and high mainstream turbulence conditions were used. The spanwise orientation of the coolant jets, typical for showerhead coolant holes, had a dominating effect. Very high levels of turbulence were generated by the mainstream interaction with the coolant jets. Furthermore, this turbulence was highly anisotropic, with the spanwise component of the turbulent fluctuations being twice as large as the other components. Finally, there was an interaction of the high mainstream turbulence with the coolant injection resulting in increased turbulence levels for the spanwise velocity component, but had little effect on the other velocity components.
Skip Nav Destination
e-mail: marc.polanka@wpafb.af.mil
e-mail: CutbirthJM@nswccd.navy.mil
e-mail: dbogard@mail.utexas.edu
Article navigation
July 2002
Technical Papers
Three Component Velocity Field Measurements in the Stagnation Region of a Film Cooled Turbine Vane
Marc D. Polanka,
e-mail: marc.polanka@wpafb.af.mil
Marc D. Polanka
Mechanical Engineering Department, University of Texas at Austin, Austin, TX 78712
Search for other works by this author on:
J. Michael Cutbirth,
e-mail: CutbirthJM@nswccd.navy.mil
J. Michael Cutbirth
Mechanical Engineering Department, University of Texas at Austin, Austin, TX 78712
Search for other works by this author on:
David G. Bogard
e-mail: dbogard@mail.utexas.edu
David G. Bogard
Mechanical Engineering Department, University of Texas at Austin, Austin, TX 78712
Search for other works by this author on:
Marc D. Polanka
Mechanical Engineering Department, University of Texas at Austin, Austin, TX 78712
e-mail: marc.polanka@wpafb.af.mil
J. Michael Cutbirth
Mechanical Engineering Department, University of Texas at Austin, Austin, TX 78712
e-mail: CutbirthJM@nswccd.navy.mil
David G. Bogard
Mechanical Engineering Department, University of Texas at Austin, Austin, TX 78712
e-mail: dbogard@mail.utexas.edu
Contributed by the International Gas Turbine Institute and presented at the International Gas Turbine and Aeroengine Congress and Exhibition, New Orleans, Louisiana, June 4–7, 2001. Manuscript received by the IGTI, October 28, 2000. Paper No. 2001-GT-402. Review Chair: R. A. Natole.
J. Turbomach. Jul 2002, 124(3): 445-452 (8 pages)
Published Online: July 10, 2002
Article history
Received:
October 28, 2000
Online:
July 10, 2002
Citation
Polanka, M. D., Cutbirth, J. M., and Bogard, D. G. (July 10, 2002). "Three Component Velocity Field Measurements in the Stagnation Region of a Film Cooled Turbine Vane ." ASME. J. Turbomach. July 2002; 124(3): 445–452. https://doi.org/10.1115/1.1459733
Download citation file:
Get Email Alerts
Evaluating Thin-Film Thermocouple Performance on Additively Manufactured Turbine Airfoils
J. Turbomach (July 2025)
Thermohydraulic Performance and Flow Structures of Diamond Pyramid Arrays
J. Turbomach (July 2025)
Related Articles
Experimental and Numerical Cross-Over Jet Impingement in an Airfoil Trailing-Edge Cooling Channel
J. Turbomach (October,2011)
A Detailed Analysis of Film Cooling Physics: Part III— Streamwise Injection With Shaped Holes
J. Turbomach (January,2000)
Correlation of Film-Cooling Effectiveness From Thermographic Measurements at Enginelike Conditions
J. Turbomach (October,2002)
Film Cooling of a Cylindrical Leading Edge With Injection Through Rows of Compound-Angle Holes
J. Heat Transfer (August,2001)
Related Proceedings Papers
Related Chapters
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Thermodynamic Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Introduction
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration