A combined experimental and computational study has been performed to investigate the detailed distribution of convective heat transfer coefficients on the first stage blade tip surface for a geometry typical of large power generation turbines (>100MW). This paper is concerned with the numerical prediction of the tip surface heat transfer. Good comparison with the experimental measured distribution was achieved through accurate modeling of the most important features of the blade passage and heating arrangement as well as the details of experimental rig likely to affect the tip heat transfer. A sharp edge and a radiused edge tip was considered. The results using the radiused edge tip agreed better with the experimental data. This improved agreement was attributed to the absence of edge separation on the tip of the radiused edge blade.
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ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition
June 7–10, 1999
Indianapolis, Indiana, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7860-6
PROCEEDINGS PAPER
Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 2 — Simulation Results
R. S. Bunker
R. S. Bunker
General Electric Corp. R & D Center, Schenectady, NY
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A. A. Ameri
AYT Corporation, Brook Park, OH
R. S. Bunker
General Electric Corp. R & D Center, Schenectady, NY
Paper No:
99-GT-283, V003T01A086; 7 pages
Published Online:
December 16, 2014
Citation
Ameri, AA, & Bunker, RS. "Heat Transfer and Flow on the First Stage Blade Tip of a Power Generation Gas Turbine: Part 2 — Simulation Results." Proceedings of the ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition. Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration. Indianapolis, Indiana, USA. June 7–10, 1999. V003T01A086. ASME. https://doi.org/10.1115/99-GT-283
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