以高空太阳能无人机为背景，探索性地针对仿生全翼式太阳能无人机进行了气动数值模拟分析研究。首先，应用基于有限体积法的改进层流动能模型方法，对典型低雷诺数机翼进行了数值模拟验证；其次，回顾了仿生全翼式太阳能无人机的设计特征；接着，采用数值模拟方法对仿生全翼式太阳能无人机进行了基本气动性能分析；最后，对无人机的横航向性能和方向舵舵效进行了检验性的计算分析，得到了较全面的全机气动性能结果。研究表明: 仿生全翼式是一种很具前景的太阳能无人机布局形式；其全机流动干扰较小，表征出典型的全翼面式低雷诺数三维流动特征；具有较高的基本气动性能(巡航升阻比大于34，纵向静稳定度约为8%)；具有静稳定的横航向性能和较好的方向舵舵效。

Based on Solar-power Unmanned Aerial Vehicle (UAV) of high altitude, exploring aerodynamic performance analysis is carried out for bionic full-wing typical solar-power UAV. Firstly, typical low Reynolds wing is verification calculated by laminar kinetic energy model method, based on the finite volume method. Secondly, design features of bionic full-wing typical solar-power UAV are reviewed. Thirdly, the basic aerodynamic performance of UAV is simulated by laminar kinetic energy model method. Finally, directional-lateral performance and rudder efficiency of UAV are calculated and analyzed to gain more comprehensive aerodynamic performance. The research shows that: bionic full-wing typical solar-power UAV is promising configuration type，whose flow interference is small, and has three-dimensional low Reynolds flow features of typical full-wing, high basic aerodynamic performance (cruise lift-drag-ratio is greater than 34, the longitudinal static stability is about 8%), static stabile directional-lateral performance and great rudder efficiency.