Transient numerical simulation of flame combustion instabilities in a liquid-jet-fuel

Abstract

Abstract Liquid fuel jet combustion, which plays an important guiding role in the field of aviation, automotive, is widely used in engineering equipment. Therefore, this paper mainly conducts on the study of its combustion characteristics, which analyses the influence of transient numerical simulations of flame combustion instability on the flame combustion instability in a liquid-jet-fuel. In addition, the simulations are also adopted by the Favre-filtered conservation equations, including three dimensions mass, momentum and energy conservation equations. Moreover, the effects of different inlet velocities on flame height and flame flutter in the flow field shows unstable explicitly. In addition, the time from the beginning to the stabilization of the jet flame is analyzed by comparing the flame height and flame shape at different moments.