The Lagrangian Flamelet Model is formulated as a combustion model for large-eddy simulations of turbulent jet diffusion flames. The model is applied in a large-eddy simulation of a piloted partially premixed methane/air diffusion flame (Sandia flame D). The results of the simulation are compared to experimental data of the mean and RMS of the axial velocity and the mixture fraction and the unconditional and conditional averages of temperature and various species mass fractions, including CO and NO. All quantities are in good agreement with the experiments. The results indicate in accordance with experimental findings that regions of high strain appear in layer like structures, which are directed inwards and tend to align with the reaction zone, where the turbulence is fully developed. The analysis of the conditional temperature and mass fractions reveals a strong influence of the partial premixing of the fuel.
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October 2000
Research Article|
October 01 2000
Large-eddy simulation of a turbulent piloted methane/air diffusion flame (Sandia flame D)
H. Pitsch;
H. Pitsch
Flow Physics and Computation Division, Department of Mechanical Engineering, Stanford University, Stanford, California 94040-3030
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H. Steiner
H. Steiner
Center for Turbulence Research, Department of Mechanical Engineering, Stanford University, Stanford, California 94040-3030
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Physics of Fluids 12, 2541–2554 (2000)
Article history
Received:
March 02 2000
Accepted:
June 16 2000
Citation
H. Pitsch, H. Steiner; Large-eddy simulation of a turbulent piloted methane/air diffusion flame (Sandia flame D). Physics of Fluids 1 October 2000; 12 (10): 2541–2554. https://doi.org/10.1063/1.1288493
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