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为了解决超声速进气道/发动机一体化问题,建立了可进行放气调节的超声速进气道部件级数学模型,而后将其与某双轴涡扇发动机部件级模型匹配,实现进气道与发动机共同工作.基于该进气道/发动机一体化部件级模型,分析计算了超声速进气道内流、外流特性,并研究了在超声速工作状态下进气道放气特性,验证了在超声速飞行时,发动机在中间状态与加力状态下,通过进气道放气调节,发动机安装推力提升了3%.
In order to solve the problem of supersonic inlet / engine integration, a component-level mathematical model of the supersonic inlet can be established and then matched with a biaxial turbofan engine component-level model to realize the relationship between intake port and engine Work together.According to the inlet / engine integrated component-level model, the characteristics of the inlet and outlet of the supersonic inlet were analyzed and calculated, and the characteristics of the inlet deflation of the inlet were studied under the supersonic working condition. It was verified that in the supersonic flight, Engine in the middle state and afterburner state, through the intake bleed adjustment, the engine mounting thrust increased by 3%.