The development of personal aerial vehicles (PAVs) using electric power distributed propulsion methods is rapidly growing. As the aerodynamic performance and flight stability characteristics can be significantly affected by multiple-propeller operation, aerodynamic analysis reflecting the power-on effect is required for design/development. Simulating all propellers using the general computational fluid dynamics is inefficient in terms of computational time and cost. Therefore, this study evaluates the practicality of actuator methods in the aerodynamic analysis of two aircrafts with multiple propellers: a quad tilt propeller (QTP) unmanned aerial vehicle (UAV) and an optionally piloted personal air vehicle (OPPAV) of the Korea Aerospace Research Institute (KARI). The normal and side forces generated by the propellers under various angle of attack and sideslip angle conditions are found to be the most contributing factors to the deterioration in the aircraft longitudinal and directional static stabilities, respectively. The forces and moments generated by the propellers are found to make both longitudinal and directional stabilities of the QTP UAV unstable. However, the OPPAV appears to remain stable state even with the operating propellers. We conclude that actuator methods, being computationally efficient in terms of cost, time, and accuracy, possess great potential for aerodynamic analysis in various related industries.

使用电力分配推进方法的个人飞行器（PAV）的发展正在迅速增长。由于多螺旋桨操作会严重影响空气动力性能和飞行稳定性，因此设计/开发需要反映动力效应的空气动力分析。就计算时间和成本而言，使用一般的计算流体动力学来模拟所有螺旋桨效率低下。因此，本研究评估了执行器方法在两架多螺旋桨飞机的空气动力学分析中的实用性：四重螺旋桨（QTP）无人机（UAV）和韩国航空航天研究所的可选驾驶个人飞机（OPPAV） （KARI）。螺旋桨在各种迎角和侧滑角条件下产生的法向力和侧向力分别是导致飞机纵向和方向静力稳定性下降的最主要因素。发现螺旋桨产生的力和力矩使QTP无人机的纵向和方向稳定性都不稳定。但是，即使使用螺旋桨，OPPAV仍保持稳定状态。我们得出的结论是，执行器方法在成本，时间和准确性方面都具有很高的计算效率，在各种相关行业中具有很大的空气动力学分析潜力。发现螺旋桨产生的力和力矩使QTP无人机的纵向和方向稳定性都不稳定。但是，即使使用螺旋桨，OPPAV仍保持稳定状态。我们得出的结论是，执行器方法在成本，时间和准确性方面都具有很高的计算效率，在各种相关行业中具有很大的空气动力学分析潜力。发现螺旋桨产生的力和力矩使QTP无人机的纵向和方向稳定性都不稳定。但是，即使使用螺旋桨，OPPAV仍保持稳定状态。我们得出的结论是，执行器方法在成本，时间和准确性方面都具有很高的计算效率，在各种相关行业中具有很大的空气动力学分析潜力。