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以固定机翼式微型飞行器(miniature air vehicle,MAV)的气动设计为研究背景,对小展弦比低雷诺数下不同长短轴比值(long-short axis ratios,LSARs)的齐默曼和反齐默曼机翼流场进行数值分析.采用人工压缩性方法求解不可压粘性绕流,应用三阶迎风格式离散对流项,湍流模型为Baldwin-Barth一方程模型.通过对比齐默曼和反齐默曼两种布局机翼的数值结果与实验值,验证了数值方法的正确性.通过分析不同长短轴比值齐默曼和反齐默曼机翼的气动性能,揭示出在长短轴比值相同的情况下,反齐默曼机翼有较高的升力,且其升阻比随着长短轴比值的减小而增大.
In this paper, based on the aerodynamic design of a MAV (miniature air vehicle), Zimmerman and Qi Qi of long-short axis ratios (LSARs) with small aspect ratios and low Reynolds numbers Mauser’s wing flow field is analyzed numerically.The artificial compressive method is used to solve incompressible viscous flow and the third-order upwind style discrete convection term is applied.The turbulence model is Baldwin-Barth one-equation model.Through the comparison between Zimmermann and Anti-Zimmer Mann two layout wing numerical and experimental results verify the correctness of the numerical method.By analyzing the aerodynamic performance of the Zimmerman and anti-Zimmerman wings with different ratios of the major and minor axes, it is revealed that when the ratios of the major and minor axes are the same , The anti-Zumermann wing has a higher lift, and the lift-drag ratio increases as the ratio of the long axis to the short axis decreases.