Effect of swirl angle on radiation models and spray flame

Abstract

The impacts of thermal radiation at various degrees of main air swirl flow have been numerically simulated, as has the kerosene fuel spray is burned. Used radiation models and the k-ε model to simulate turbulent quantities. A model with thorough kerosene combustion dynamics is projected using a statistical model with kerosene fuel-specific model variables. In order to forecast, flow of incident heat on the fuel injector and combustor wall contributions from thermal radiation and the gas phase have both taken into account. The primary flow's swirl has a big impact on the combustor's flow and flame structures. More air is drawn into the flame zone by the higher recirculation at a high swirl, which both shortens the flame and lowers the peak flame temperature while bringing more air to the input plane. As a result, at a high swirl, the radiant heat flow on the peripheral wall diminishes and moves inward toward the inlet plane. However, due to the flame expanding radially, increasing swirl raises the temperature of the combustor wall. The fuel injector is an essential component of the combustor due to the high occurrence radiant high surface temperature and heat flux Considering the proximity the entrance plane of the fire. the injector's maximum temperature rises as the swirl flow increases. On the other hand, strong swirl conditions near the combustor outlet can lead to a more even temperature distribution the exhaust stream. The outcomes of the numerical simulation are contrasted with experimental. The outcomes showed that a swirling angle (40, 50, and 60) provided good results through temperature, incidence radiation, and thermal efficiency.