Present-day demands on combustion equipment are increasing the need for improved understanding and prediction of turbulent combustion. Large eddy simulation (LES), in which the large-scale flow is resolved on the grid, leaving only the small-scale flow to be modeled, provides a natural framework for combustion simulations as the transient nature of the flow is resolved. In most situations; however, the flame is thinner than the LES grid, and subgrid modeling is required to handle the turbulence-chemistry interaction. Here we examine the predictive capabilities between LES flamelet models, such as the flamelet progress variable (LES-FPV) model, and LES finite rate chemistry models, such as the thickened flame model (LES-TFM), the eddy dissipation concept (LES-EDC) model, and the partially stirred reactor model (LES-PaSR). The different models are here used to examine a swirl-stabilized premixed flame in a laboratory gas turbine combustor, featuring the triple annular research swirler (TARS), for which high-quality experimental data is available. The comparisons include velocity and temperature profiles as well as combustor dynamics and NO formation.
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April 2012
Research Papers
A Comparative Study of Flamelet and Finite Rate Chemistry LES for a Swirl Stabilized Flame
C. Fureby
e-mail: fureby@foi.se
C. Fureby
Defense Security Systems Technology, The Swedish Defense Research Agency – FOI
, SE 147 25, Tumba, Stockholm, Sweden
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C. Fureby
Defense Security Systems Technology, The Swedish Defense Research Agency – FOI
, SE 147 25, Tumba, Stockholm, Sweden
e-mail: fureby@foi.se
J. Eng. Gas Turbines Power. Apr 2012, 134(4): 041503 (13 pages)
Published Online: January 27, 2012
Article history
Received:
February 19, 2011
Revised:
July 12, 2011
Online:
January 27, 2012
Published:
January 27, 2012
Citation
Fureby, C. (January 27, 2012). "A Comparative Study of Flamelet and Finite Rate Chemistry LES for a Swirl Stabilized Flame." ASME. J. Eng. Gas Turbines Power. April 2012; 134(4): 041503. https://doi.org/10.1115/1.4004718
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