通过引入涡轮冷却气流量预估模型和NOx排放预估模型,进一步发展了间冷回热涡扇发动机计算模型和相应的仿真程序.数值分析了涡轮冷却用气引出位置和引气量对间冷回热涡扇发动机的性能和排放的影响.结果表明,从回热器冷端出口引气时,耗油率低于从高压压气机出口引气的情况;涡轮冷却技术提高即冷却用气量减少对降低耗油率有益;从回热器冷端出口引气对减少巡航状态NOx排放有益;对NOx排放量影响最大的是燃烧室技术水平.
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