通过三维计算流体动力学(CFD)数值计算,研究了加力燃烧室中三种不同型式的锯齿冠状混合器及环形混合器的掺混性能.结果表明:①锯齿冠状混合器下游形成了流向涡阵列,锯齿布置和倾角对其尺度和强度有较大的影响;②相邻锯齿交错布置的锯齿冠混合器的强化掺混效果最为显著且流动损失相对较低,总压恢复系数相对环形混合器降低在0.2%以内,在其作用下,加力燃烧室火焰稳定器前的外涵气流温度提高100~150 K左右. Through three-dimensional computational fluid dynamics (CFD) numerical calculation, the mixing performance of three different types of serrated coronal mixer and ring mixer in afterburner was studied.The results showed that: (1) Arrays, sawtooth arrangement and inclination have a greater impact on the scale and strength of the ring mixer; (2) The effect of reinforcement mixing of serrated crowns with adjacent serrations staggering is the most significant and the flow loss is relatively low. The total pressure recovery coefficient Within 0.2%, the temperature of the external air flow before the afterburner flame stabilizer is increased by about 100-150 K under its action.