عنوان مقاله [English]
Trapped vortex combustor (TVC) is a compact combustor which represents the high efficiency in flame stabilization. In this study, turbulent reacting flow through trapped vortex combustor is numerically simulated. In order to model turbulence, the K-ω-SST and scale adaptive simulation (SAS) models, and to model combustion, the species transport and probability density function (PDF) approaches are used. To verify the numerical model, numerical results are compared with the available experimental data. There is a good agreement between the mean and RMS values of temperature and emission indices (CO, unbernt hydrocarbon (UHC) and NOx) obtained from numerical results and experimental data. Moreover, simulation is performed for different values of equivalence ratios and mainstream inlet temperatures and results show that with a constant value of equivalence ratio, by increasing the mainstream inlet temperature, combustion efficiency increases, while CO and UHC emission indices decrease.
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