【摘要】 介绍弹丸前体喷流实验方法及喷流对弹丸气动性能的影响。实验M数为2,迎角α=0°～6°,喷嘴倾角θ=30°,喷流压力比P0j/P∞=0～102.6,喷流介质为冷空气。实验结果表明,随着增加P0j/P∞,弹丸前体阻力系数CDF下降,升力系数CL上升,压心 XCP明显后移,并做了简要分析。更多还原

【Abstract】 This paper introduces a wind tunnel experimental method of projectile with jet from its forebody and influence of jet on aerodynamic characteristics of projectile. Experimental Mach number is 2, the angles of attack are from 0°to 6°. Jet pressure ratios P_0j/P_∞　are 0～102.6. Inclined angle of jets is 30°. The medium of jet is cool air. Experimental results show that the C_DF reduces, C_L rises and _CP　moves downstream markedly as P_0j/P_∞　increases. A briefly analysis is given in this paper.更多还原