Flow Separation Control for a Supersonic Spinning Projectile by using a Microvortex Generator Jet
J. Ma1, Z. H. Chen2, D. W. Xue3, X. H. Sun4, R. Liu1
1Nanjing Tech University, Nanjing, Jiangsu, 211816, China
2Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
3Zhejiang Ocean University, Zhoushan, Zhejiang, 316022 China
4Shanghai Aerospace Control Technology Institute, Shanghai, 201109 China
Keywords: aerodynamics, microvortex generator jet, flow separation control, spinning projectile
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.
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