Numerical Simulation and Experiment of an Alternative Model of Aviation Kerosene
Abstract
Aviation kerosene is widely used in aero-engines. However, due to the complexity of aviation kerosene composition, the combustion mechanism of aviation kerosene is often simplified. In this paper, a simplified combustion model using n-heptane instead of aviation kerosene is proposed, and the model is studied by numerical simulation. Therefore, n-heptane and RP3 aviation kerosene were selected as the research objects, and the suspension droplets were tested in the standard gravity environment to analyze the influence of different ambient temperature on the droplet evaporation and combustion process. Based on the experimental study, a reasonable numerical model is established to simulate the combustion process of droplets. The change rule of flame shape under different environmental conditions, especially the change rule of flame characteristics under different environmental temperatures, is studied emphatically