Abstract
An original mean for the steering of supersonic projectiles is proposed since several years. Now, the deflection of the trajectory of such a projectile by generating electric discharges producing plasma on its surface becomes very realistic facing the experimental results got previously. The present paper deals mainly with academic pressure measurements carried out on a wedge, the transducers being located very near the electrodes of the electric discharge actuator. The experiments are carried out in a shock tunnel at the Mach number of 4.5 under realistic conditions present at 8 km of altitude. The research is motivated by expectations to be confirmed or not about physical effects producing the motion of the projectile under electric discharge actuation. Several series of tests prove that the electric discharge generating plasma produces a local overpressure around the electrodes. This result is in coherence with the motion of a projectile submitted to electric discharges observed in a wind tunnel and a shock tunnel.
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References
P. Gnemmi, C. Rey, Experimental Investigations on a Free-Flying Supersonic Projectile Model Submitted to an Electric Discharge Generating Plasma, 30th International Symposium on Shock Waves 2, ISSW30 Volume 2, 2017
P. Gnemmi, R. Charon, J.P. Dupéroux, A. George, Feasibility study for steering a super-sonic projectile by a plasma actuator. AIAA J. 46(6), 1308–1317 (2008)
P. Gnemmi, C. Rey, Plasma actuation for the control of a supersonic projectile. J. Spacecr. Rocket. 46(5), 989–998 (2009)
P. Wey, C. Berner, E. Sommer, V. Fleck, H. Moulard, Theoretical Design for a Guided Supersonic Projectile, 22nd International Symposium on Ballistics, Vancouver, BC, Canada, 14–18 November, 2005
P. Wey, Performance Analysis of the ISL’s Guided Supersonic Projectile, 23rd International Symposium on Ballistics, Tarogona, Spain, 16–20 April, 2007
A. Nekris, P. Gnemmi, C. Mundt, Multi-Species Simulations of Plasma Discharges in NLTE State in Supersonic Flows, 51st 3AF International Conference of Applied Aerodynamics, Strasbourg, France, 4–6 April, 2016
P. Gnemmi, C. Rey, Guidance of a supersonic projectile by plasma-actuation concept. Wind tunnels and experimental fluid dynamics research (Dr. Jorge Colman Lerner and Dr. Ulfilas Boldes), July, 2011
G. Smeets, Interferometry, Lecture Series 1990–05 on measurement techniques for hypersonic flows, von Kà rmà n Institute for Fluid Dynamics, Rhode-St-Genèse, Belgium, May 28–June 1, 1990
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Gnemmi, P., Rey, C., Sauerwein, B., Bastide, M. (2019). Pressure Measurements Around an Electric Discharge Produced on a Wedge in a Supersonic Flow. In: Sasoh, A., Aoki, T., Katayama, M. (eds) 31st International Symposium on Shock Waves 2. ISSW 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-91017-8_137
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DOI: https://doi.org/10.1007/978-3-319-91017-8_137
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