Abstract

The possibility of using microvortex generator jets to improve the flight stability and firing accuracy of the M549 projectile by regulating the vortex distribution on the surface is studied in this paper. The microvortex generator jet is inserted in front of the projectile shoulder, and the flow field structure around the projectile is simulated by the detached eddy simulation method. The numerical results show that microvortex generator jets can eliminate irregular vibrations induced by aerodynamics forces by inhibiting vortex shedding.

中文翻译：

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使用微涡流发生器射流对超音速旋转射弹进行流分离控制

摘要

本文研究了使用微涡流发生器射流通过调节表面涡流分布来提高M549弹丸飞行稳定性和射击精度的可能性。微涡发生器射流插入弹肩前部，采用分离涡流模拟方法模拟弹丸周围流场结构。数值结果表明，微涡发生器射流可以通过抑制涡脱落来消除空气动力引起的不规则振动。