论文部分内容阅读
为了研究不同涡轮燃烧形式对大涵道比涡扇发动机的性能影响,在传统发动机数学模型的基础上,分别加入各型涡轮燃烧结构的热力学计算模型,分析比较了在不同工作过程参数下,4种带涡轮燃烧结构发动机与传统发动机的性能(单位推力和单位燃油消耗率)随风扇增压比、高压压气机增压比、高压涡轮进口总温和涵道比的变化关系。结果表明:涡轮级间燃烧室(ITB)与涡轮叶间燃烧室(TIB)各有特点,但都能够明显提高传统分别排气涡扇发动机的性能,其中高压涡轮叶间燃烧室(HTIB)效果尤为突出。
In order to study the influence of different turbine combustion modes on the performance of large bypass ratio turbofan engines, thermodynamic calculation models of various types of turbine combustion structures were respectively added on the basis of the traditional mathematical model of the engine, and analyzed and compared under different working process parameters, 4 The performance (unit thrust and unit fuel consumption rate) of the turbocharged engine with the conventional engine depends on the turbocharger ratio, the turbocharger ratio of the high-pressure compressor, the total inlet pressure of the high-pressure turbine and the bypass ratio. The results show that both the ITB and the TIB have their own characteristics, but all of them can significantly improve the performance of the conventional exhaust turbofan engine. Among them, the effects of high pressure turbine inter-combustion chamber (HTIB) Particularly prominent.