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针对某型无人机进行融合式、双叉弯刀式2种不同形式翼梢小翼设计,对6组不同参数的小翼构型进行了基于RNAS控制方程的数值模拟计算,结果表明,双叉弯刀式小翼在气动效率的提高、横航向稳定性影响方面明显优于融合式翼梢小翼。结合数值模拟计算结果,从气动机理上对加装翼梢小翼后的纵向、横航向特性影响进行了分析,得出了2种不同形式小翼的气动特点及其各参数对气动性能的影响,其结论对中小型无人机翼梢小翼的设计提供了一定的参考依据。
According to the design of two types of winglets with two types of wing and the double-ended machete, a set of six wing winglets with different parameters were simulated based on the governing equations of RNAS. The results show that the double Fork scimitar winglets are significantly better than converged winglets in terms of improved aerodynamic efficiency and lateral stability. Based on the results of numerical simulation, the influence of the winglet winglets on the longitudinal and transverse directions is analyzed from the aerodynamic mechanism. The aerodynamic characteristics and the influence of each parameter on the aerodynamic performance are obtained , The conclusion provides a reference for the design of winglet of small and medium-sized UAVs.