In this paper, the effects of a baffle plate on flame deflection and its throttling are investigated numerically in a combustor consuming jet propellant JP. We study the plate effects on the resulting soot volume fraction, soot particles diameter, mass fractions of carbon monoxide (CO), carbon dioxide (CO_2), and benzene (C_6H_6). We use a two-equation turbulence model, a PAH-inception two-equation soot model imposing oxidation due to OH agents, a detailed chemical kinetic consisting of 121 species and 2613 elementary reactions, and the flamelet combustion model to perform the current study. We also take into account the turbulence-chemistry interaction using the presumed-shape probability density functions PDFs. We also implement the radiation heat transfer of soot and gases assuming optically-thin flame. To evaluate our numerical results, we first simulate an available experiment, i.e., the turbulent gaseous-kerosene/air flame, and compare the achieved flame structure with that of measured data. Our numerical results perform good agreements with the data. Next, we embed a baffle plate, with an opening hole at its center, at a specific height above the fuel-injector nozzle exit and compare the new results with those of benchmark. The current results show that the baffle plate shrinks the flame near the fuel-injector nozzle. Our calculations show that the emission of carbon monoxide, carbon dioxide, benzene, and soot nano-aerosol are seriously affected by the embedded plate. We find that the embedded plate effectively reduces the pollutant formation within the combustor and consequently at the burner outlet Furthermore, our findings indicate that the embedded baffle plate augments the combustion efficiency of JP-fueled combustors. So, the results of this work can be considered as a good source to reduce the pollutants in JP-Fueled Combustors effectively.
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