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对高超声速飞行器进行了非对称转捩对飞行器稳定性的影响研究,并通过风洞试验对纵向绊线促发和抑制转捩的方法进行了研究。研究结果表明:高超声速飞行器的横侧向稳定性较差,其主要原因是头部绕流的横向扰动,其中非对称转捩是最重要原因之一。横侧向失稳可能造成飞行器的螺旋运动。采用纵向绊线可以促使横向流的固定转捩,并降低横向流转捩的不对称性,增强高超声速飞行器的横侧向稳定性。
The impact of asymmetric transfer of hypersonic vehicle on the stability of the aircraft was studied. The method of inducing and inhibiting transfer of longitudinal tripwire was studied by wind tunnel test. The results show that the lateral stability of the hypersonic vehicle is poor, mainly due to the lateral disturbance of the flow around the head, of which the asymmetric rotation is one of the most important reasons. Lateral instability can cause helicopter movement. The use of longitudinal tripwire can promote the fixed rotation of transverse flow, reduce the asymmetry of lateral flow and enhance the lateral stability of hypersonic vehicle.