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Numerical Simulation of NO Production in Gas-Turbine Combustor With Large-Eddy Simulation Using 2-Scalar Flamelet Approach

[+] Author Affiliations
Shingo Nishida, Tomonori Yamamoto, Kazuhiro Tsukamoto, Nobuyuki Oshima

Hokkaido University, Sapporo, Hokkaido, Japan

Paper No. DETC2009-87153, pp. 285-293; 9 pages
  • ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 29th Computers and Information in Engineering Conference, Parts A and B
  • San Diego, California, USA, August 30–September 2, 2009
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4899-9 | eISBN: 978-0-7918-3856-3
  • Copyright © 2009 by ASME


Under high temperature combusting environment, very high level of thermal NOx is generated. In order to prevent environmental contamination and pursue more power generation efficiency, we need to build up radically new combustion mode that satisfies both of higher temperature at outlet and lower NOx emissions. To investigate the ability of our numerical prediction method in a practical combustor system, we calculate two combustion modes and predict time-averaged temperature and NOx distribution in the 1700degC class gas-turbine combustor that is a test model fabricated by Mitsubishi Heavy Industries, Ltd. Then, we compare with experimental data to validate and analyze our calculation model. The results show LES and 2-scalar flamelet approach is very effective to predict NOx production in practical gas-turbine combustor.

Copyright © 2009 by ASME



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