The flow field exiting the combustor in a gas turbine engine is quite complex considering the presence of large dilution jets and complicated cooling schemes for the combustor liner. For the most part, however, there has been a disconnect between the combustor and turbine when simulating the flow field that enters the nozzle guide vanes. To determine the effects of a representative combustor flow field on the nozzle guide vane, a large-scale wind tunnel section has been developed to simulate the flow conditions of a prototypical combustor. This paper presents experimental results of a combustor simulation with no downstream turbine section as a baseline for comparison to the case with a turbine vane. Results indicate that the dilution jets generate turbulence levels of 15–18% at the exit of the combustor with a length scale that closely matches that of the dilution hole diameter. The total pressure exiting the combustor in the near wall region neither resembles a turbulent boundary layer nor is it completely uniform putting both of these commonly made assumptions into question.
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ASME Turbo Expo 2001: Power for Land, Sea, and Air
June 4–7, 2001
New Orleans, Louisiana, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-7852-1
PROCEEDINGS PAPER
Flow Field Simulations of a Gas Turbine Combustor
M. D. Barringer,
M. D. Barringer
Virginia Polytechnic Institute and State University, Blacksburg, VA
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O. T. Richard,
O. T. Richard
Virginia Polytechnic Institute and State University, Blacksburg, VA
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J. P. Walter,
J. P. Walter
Virginia Polytechnic Institute and State University, Blacksburg, VA
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S. M. Stitzel,
S. M. Stitzel
Virginia Polytechnic Institute and State University, Blacksburg, VA
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K. A. Thole
K. A. Thole
Virginia Polytechnic Institute and State University, Blacksburg, VA
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M. D. Barringer
Virginia Polytechnic Institute and State University, Blacksburg, VA
O. T. Richard
Virginia Polytechnic Institute and State University, Blacksburg, VA
J. P. Walter
Virginia Polytechnic Institute and State University, Blacksburg, VA
S. M. Stitzel
Virginia Polytechnic Institute and State University, Blacksburg, VA
K. A. Thole
Virginia Polytechnic Institute and State University, Blacksburg, VA
Paper No:
2001-GT-0170, V003T01A048; 10 pages
Published Online:
July 30, 2014
Citation
Barringer, MD, Richard, OT, Walter, JP, Stitzel, SM, & Thole, KA. "Flow Field Simulations of a Gas Turbine Combustor." Proceedings of the ASME Turbo Expo 2001: Power for Land, Sea, and Air. Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration. New Orleans, Louisiana, USA. June 4–7, 2001. V003T01A048. ASME. https://doi.org/10.1115/2001-GT-0170
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