發(fā)布時間：2018-03-14 00:15

  本文選題：吸氣式飛行器　切入點：高超聲速　出處：《航空動力學報》2017年10期 　論文類型：期刊論文

【摘要】：為了研究吸氣式高超聲速飛行器尾噴流對飛行器尾部區(qū)域氣動性能的影響,在中國空氣動力研究與發(fā)展中心鐖0.5m高超聲速風洞中,在來流馬赫數(shù)為5.0和6.0條件下,開展了不同落壓比條件下的尾噴流干擾測壓實驗研究,同時采用高清紋影觀測了噴流干擾區(qū)域的流場結(jié)構(gòu)。實驗結(jié)果表明:不同噴流落壓比時,飛行器尾部區(qū)域表面壓力分布差別明顯,高落壓比時噴流干擾作用的區(qū)域更大,壓強數(shù)值更高。紋影也顯示高落壓比時交叉干擾激波更強、剪切層擴張更明顯。噴流干擾區(qū)域已影響到了飛行器水平翼區(qū)域的壓力分布,將會對飛行器操縱特性產(chǎn)生影響。
[Abstract]:In order to study the effect of the tail jet on the aerodynamic performance in the rear region of an aspirated hypersonic vehicle, a 0.5 m hypersonic wind tunnel with a Mach number of 5.0 and 6.0 was carried out in a 0.5 m hypersonic wind tunnel of the China Center for aerodynamic Research and Development. The experimental study of the tail jet interference pressure measurement under different drop pressure ratios is carried out, and the flow field structure of the jet interference region is observed by using high-definition schlieren. The experimental results show that the flow field structure is measured with different jet drop pressure ratios. The distribution of surface pressure in the rear region of the aircraft is obviously different, the area of jet interference is larger and the pressure value is higher when the falling pressure is higher than that at high drop pressure, and the schlieren also shows that the cross-interference shock wave is stronger when the falling pressure is higher than that at the time of falling pressure. The shear layer expansion is more obvious. The jet interference region has affected the pressure distribution in the horizontal wing region of the aircraft and will have an impact on the aircraft control characteristics.
【作者單位】： 中國空氣動力研究與發(fā)展中心超高速空氣動力學研究所高超聲速沖壓發(fā)動機技術(shù)重點實驗室;
【分類號】：V211.7
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本文編號：1608758