The influence of the propeller slipstream on the aerodynamic performance of the airplane is simulated, by applying the actuator disk theory on solving steady RANS equations. Three different kinds of the actuator disk loads are constructed based on the blade loads for three configurations, namely the isolated propeller with center- body,propeller with nacelle and propeller installed on the wing- body with nacelle. Through the comparison of the aforementioned actuator disk results and the time- averaged results of the unsteady simulation, the conclusion is drawn that the three kinds of actuator disk loads can successfully simulate the influence of the propeller slipstream on the airplane. Therefore, we can establish actuator disk model for the engineering prediction of the propeller slipstream by using the blade loads of the isolated propeller with center- body.%采用动量激励盘理论,求解准定常RANS方程,模拟螺旋桨滑流对飞机气动特性的影响.分别基于螺旋桨+中心体、螺旋桨+短舱、螺旋桨+短舱+翼身组合体构型的非定常流场模拟得到的桨叶载荷,建立三种不同的激励盘载荷.将三种载荷的流场模拟结果与全机非定常模拟的时间平均结果进行对比,可知三种不同激励盘载荷均能准确地模拟螺旋桨滑流的影响,因此,可以通过最简单的螺旋桨+中心体构型建立激励盘模型,用于螺旋桨滑流工程预测.
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