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使用CFD计算流体力学软件对双尾撑无人机进行气动力数值计算,得到小迎角范围内的气动特性参数以及双尾撑无人机表面的压力、密度和来流速度分布情况。运用飞机工程经验计算方法对该无人机进行气动力计算,同时与数值计算结果进行比较分析,结果表明,数值计算方法能够合理的模拟低速流场流动,对无人机的气动布局分析具有重要作用,为下一步无人机的气动布局优化提供了有效的理论基础和参考。
The CFD computational fluid dynamics software is used to calculate the aerodynamic parameters of the two-tail prop UAV, and the aerodynamic parameters in the low angle of attack and the pressure, density and inflow velocity distribution on the surface of the two-tail prop UAV are obtained. The aircraft engineering experience calculation method is used to calculate the aerodynamic force of the UAV. At the same time, the aerodynamic calculation is compared with the numerical calculation results. The results show that the numerical calculation method can reasonably simulate the low-velocity flow field flow and is important for the aerodynamic layout analysis of the UAV It provides an effective theoretical basis and reference for the further optimization of the aerodynamic layout of the UAV.