A three-dimensional Navier–Stokes simulation has been performed for a realistic film-cooled turbine vane using the LeRC-HT code. The simulation includes the flow regions inside the coolant plena and film cooling holes in addition to the external flow. The vane is the subject of an upcoming NASA Lewis Research Center experiment and has both circular cross-sectional and shaped film cooling holes. This complex geometry is modeled using a multiblock grid, which accurately discretizes the actual vane geometry including shaped holes. The simulation matches operating conditions for the planned experiment and assumes periodicity in the spanwise direction on the scale of one pitch of the film cooling hole pattern. Two computations were performed for different isothermal wall temperatures, allowing independent determination of heat transfer coefficients and film effectiveness values. The results indicate separate localized regions of high heat flux in the showerhead region due to low film effectiveness and high heat transfer coefficient values, while the shaped holes provide a reduction in heat flux through both parameters. Hole exit data indicate rather simple skewed profiles for the round holes, but complex profiles for the shaped holes with mass fluxes skewed strongly toward their leading edges. [S0889-504X(00)02802-6]
Skip Nav Destination
Article navigation
April 2000
Technical Papers
A Three-Dimensional Coupled Internal/External Simulation of a Film-Cooled Turbine Vane
James D. Heidmann,
James D. Heidmann
NASA Lewis Research Center, Cleveland, OH 44135
Search for other works by this author on:
David L. Rigby,
David L. Rigby
Dynacs Engineering Co., Inc., Brookpark, OH 44142
Search for other works by this author on:
Ali A. Ameri
Ali A. Ameri
AYT Corporation, NASA Lewis Research Group, Cleveland, OH 44135
Search for other works by this author on:
James D. Heidmann
NASA Lewis Research Center, Cleveland, OH 44135
David L. Rigby
Dynacs Engineering Co., Inc., Brookpark, OH 44142
Ali A. Ameri
AYT Corporation, NASA Lewis Research Group, Cleveland, OH 44135
Contributed by the International Gas Turbine Institute and presented at the 44th International Gas Turbine and Aeroengine Congress and Exhibition, Indianapolis, Indiana, June 7–10, 1999. Manuscript received by the International Gas Turbine Institute February 1999. Paper No. 99-GT-186. Review Chair: D. C. Wisler.
J. Turbomach. Apr 2000, 122(2): 348-359 (12 pages)
Published Online: February 1, 1999
Article history
Received:
February 1, 1999
Citation
Heidmann, J. D., Rigby, D. L., and Ameri, A. A. (February 1, 1999). "A Three-Dimensional Coupled Internal/External Simulation of a Film-Cooled Turbine Vane ." ASME. J. Turbomach. April 2000; 122(2): 348–359. https://doi.org/10.1115/1.555450
Download citation file:
Get Email Alerts
Related Articles
Leading-Edge Film-Cooling Physics—Part III: Diffused Hole Effectiveness
J. Turbomach (April,2003)
A Converging Slot-Hole Film-Cooling Geometry—Part 2: Transonic Nozzle Guide Vane Heat Transfer and Loss
J. Turbomach (July,2002)
Heat Transfer Characteristics Analysis on a Fully Cooled Vane With Varied Density Ratios
J. Thermal Sci. Eng. Appl (January,2022)
High-Resolution Measurements of Local Heat Transfer Coefficients From Discrete Hole Film Cooling
J. Turbomach (October,2001)
Related Proceedings Papers
Related Chapters
Control and Operational Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Laminar Fluid Flow and Heat Transfer
Applications of Mathematical Heat Transfer and Fluid Flow Models in Engineering and Medicine
Thermodynamic Performance
Closed-Cycle Gas Turbines: Operating Experience and Future Potential