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本文基于低速风洞纵向测力以及涡格法的理论计算结果,初步探索了联接翼布局的低速纵向气动特性,并与相应的机翼、尾翼相分离的正常布局的试验结果作了比较。结果表明,联接翼布局具有许多优点,如较大的升为线斜率C_~α、较大升力系数C_(max)、较大的纵向稳定度、相当小的诱导阻力C_(zi)和较高的巡航升阻比K。还研究了在联接翼前部配置鸭翼对进一步提高和改善其纵向气动性能的可能性。
Based on the longitudinal force measurement of low-speed wind tunnel and the theoretical calculation of the vortex-grid method, the low-speed longitudinal aerodynamic characteristics of the connecting-wing layout are preliminarily explored and compared with the results of the normal layout with the corresponding wing and tail. The results show that the joint wing layout has many advantages, such as larger rise to line slope C_ ~ α, larger lift coefficient C_ (max), larger longitudinal stability, rather small induction drag C_ (zi) and higher Cruise lift resistance ratio K. The possibility of arranging canard wings in the front of the coupling wings to further improve and improve their longitudinal aerodynamic performance was also studied.