Combustion instabilities of swirl combustors, with radial and axial air injection schemes; computational studies using LES and IDDES

Combustion instabilities of swirl combustion, with axial and radial air injection schemes, are subject of investigation in the present research. The computational studies are performed using the large-eddy simulation approach. The computational studies are performed for a Reynolds number (formula presented) . The analysis reveals that the radial air injection scheme enhance the turbulent mixing and thus, the efficiency of the combustion process. Thus, higher temperature values were observed for the case of radial air injection versus axial air injection scheme. The study also revealed that the radial air injection scheme reduces the CO2.