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Detailed Chemistry Simulations of a Trapped Vortex Combustor

[+] Author Affiliations
Graham M. Goldin, Jens Madsen

Fluent, Inc., Lebanon, NH

Douglas L. Straub, William A. Rogers, Kent H. Casleton

U.S. Department of Energy, Morgantown, WV

Paper No. GT2003-38780, pp. 121-128; 8 pages
doi:10.1115/GT2003-38780
From:
  • ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference
  • Volume 1: Turbo Expo 2003
  • Atlanta, Georgia, USA, June 16–19, 2003
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 0-7918-3684-3 | eISBN: 0-7918-3671-1
  • Copyright © 2003 by ASME

abstract

Steady simulations of a Trapped Vortex Combustor are performed with the Strained Laminar Flamelet model, the Eddy Dissipation Concept (EDC) model and the Composition PDF Transport model using an accurate 19 species Augmented Reduced Mechanism. CO predictions are reasonable, although the EDC model over-predicts CO since the reaction time in the fine scales is less than the residence time in the combustor. The PDF Transport model over-predicts NO by a factor of four for reasons that are not well understood at present. In-situ Adaptive Tabulation (ISAT) accelerates chemistry calculations by two to three orders of magnitude, making 3D CFD calculations with detailed chemistry computationally feasible.

Copyright © 2003 by ASME

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