关键词: 涡轮喷气发动机;加力燃烧室;扩散火焰;涡流;数值解

Abstract: The interaction of diffusion flame with vortex pair is essential for understanding of combustion. The structure of diffusion flame in flow fields with vortex pair and the effect of the diffusion flame on the flow fields are discussed in the paper.The numerical results show excellent agreement with the analytical solution to flame structure when the effect of heat release due to chemical reaction and the change of density are not to be considered.

Key words: Turbojet engine;Afterburner;Diffusion flame;vortex flow;Numerical solution