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应用数值模拟方法,通过建立完整的发动机外涵流道三维模型,对某型飞机反推装置与发动机本体的气动性能耦合进行了研究。结果表明,反推性能计算不宜再采用反推打开前的发动机截面参数作为输入,同时,反推优化设计应考虑其与发动机本体的性能匹配。
The numerical simulation method is used to study the aerodynamic performance coupling between the thrust reverser of a certain aircraft and the engine body by establishing a complete three-dimensional model of the outer runway of the engine. The results show that it is not appropriate to use the engine cross-section parameters before reverse-thrusting as the input in the back-thrusting calculation. At the same time, the thrust-optimized design should consider its performance matching with the engine body.