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采用某飞机大迎角大振幅运动风洞实验结果,分析了大迎角非定常空气动力的一些特性。结果表明,飞机机动飞行时多自由度运动的气动特性比单自由度运动复杂,耦合运动时的气动特性和两个单自由度运动的气动特性的叠加结果相比有一定差别。此外,旋转天平实验结果同本实验的结果相比差别较大。
Based on the experimental results of a large-amplitude wind tunnel with a large angle of attack at a high angle of attack, some characteristics of unsteady aerodynamics at high angles of attack are analyzed. The results show that the aerodynamic characteristics of multi-degree-of-freedom motion during aircraft maneuver are more complex than the one-degree-of-freedom motion. The aerodynamic characteristics of the coupled aerodynamic behavior are different from those of two single-degree-of-freedom aerodynamic characteristics. In addition, the rotating balance experimental results with the results of this experiment are quite different.