【作者】 张璇； 田于逵； 郑文涛； 崔城诚； 余兰； 李国强；

【Author】 Zhang Xuan;Tian Yu-kui;Zheng Wen-tao;Cui Cheng-cheng;Yu Lan;Li Guo-qiang;China Ship Scientific Research Center;

【机构】 中国船舶科学研究中心；

【摘要】 本文介绍了一种Clark-Y翼型截尾环量控制舵翼的水动力性能试验。试验研究了环量控制舵翼(尾缘长短轴=2:1的柯恩达表面)在雷诺数Re=6.4×104下从0度到24度的升阻性能,获得了不同攻角下的升力、阻力系数,其中最大升力系数在喷流动量系数Cμ=0.116,攻角为21°时取得,最大升力系数为CLmax=1.1,最大升力系数增量约为ΔCLmax≈0.43。研究结果表明升力系数并不是随喷流动量系数增加而线性增大,当喷流动量系数超过一定阶段后,升力系数增加的速率降低,从经济角度考虑,在6°攻角下只需要较少的喷流功率(Cμ=0.033)即可获得较好的增升效果。更多还原

【Abstract】 The hydrodynamic experiment of a Clark-Y modified circulation controlled rudder(CCR) is undertaken in a water tunnel. Water tunnel tests are conducted at Reynolds numbers of 6.4×104 with angle of attack from α=0° to α=24°. Test data of lift and drag coefficients at different angle of attack are collected. It is found that the(2:1) Coanda surface on the CCR achieves a maximum lift coefficient of CLmax=1.1 and a maximum ?CLmax=0.43 at Cμ = 0.116 and α = 21°. The testing results also show that the lift coefficient is not proportional to moment coefficient Cμ, the effectiveness decreases at higher blowing rates. For the point of energy efficient consideration, A low blowing rate(Cμ=0.033)a high lift augmentation ratio can be achieved at a angle of attack α =6°, which means relatively low energy consumption.更多还原