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提出了一种激波系整体重构的激波控制技术,并对其流动机理和控制规律进行了仿真分析,继而探索了其在定几何可调进气道上的应用.研究结果表明:该激波控制方法可对前体第1级激波进行有效推动,并可减弱第2级激波强度甚至使其完全蜕化,故实现了对前体激波系的重新构造.随着二次流注入缝的角度增大,将前体激波推动至贴口状态所需消耗的二次流流量逐步减少.并且,最多消耗占主流2.04%的二次流,便可使该进气道在马赫数为5.0~6.0范围内保持贴口状态.与已有各级激波独立控制的可调进气道相比,该进气道在调节状态下的总压恢复较高、消耗的二次流较少,具有明显的优势.
A shockwave control technique is proposed for the whole reconstruction of a shock wave system. The flow mechanism and control law of the shockwave system are simulated and analyzed, and then the application of the shockwave on the geometry-adjustable inlet is also discussed. The results show that the shock The wave control method can effectively push the first-order shock wave of the precursors and weaken the intensity of the second-order shock wave or even completely degenerate it, so the reconstruction of the precursor shock wave system is achieved.With the secondary flow injection The angle of the seam increases and the secondary flow consumed to push the precursor shock to the sticking state is gradually reduced, and up to 2.04% of the secondary flow can be consumed to make the intake at Mach For the range of 5.0 ~ 6.0 to keep the mouth state.And has all levels of shock independent control of adjustable inlet compared to the inlet in the adjustment of the total pressure recovery is higher, the consumption of secondary flow is more Less, with obvious advantages.