摘要
螺旋桨滑流对飞机气动特性有着非常重要的影响。所以,深刻地认识和预测螺旋桨与飞机部件之间的气动干扰,日益得到人们的重视。然而螺旋桨滑流与飞机其它部件之间的相互影响,一直是螺旋桨飞机设计中十分复杂的问题。引入基于动量理论的激励盘模型,通过求解三维雷诺平均的N-S方程,数值模拟了螺旋桨滑流对带发动机短舱的机翼气动特性的影响,并与实验值进行了对比分析。计算结果表明,方法应用于螺旋桨激励盘理论,能够较好地模拟螺旋桨滑流的效果,基本满足工程计算的要求。
The turbo-propeller slipstream has strong effect to the aerodynamic characteristics of the aircraft. Therefore, clear understanding and prediction of the influence between turbo- propeller and other parts of the aircraft gained more attention for the design of such kind of aircrafts. The three dimensional RANS equations with adoption of an actuator disk model based on the momentum theory are used to simulate the effect of turbo- propeller slipstream on a wing- nacelle configuration. The equations are solved by using the finite volume method. The propeller is modeled as a thin actuator disk. The slipstream is result of a pressure jump over the disk surface. The results show good agreement with the experiment data. The results show that, turbo-propeller actuator disk approach mentioned in this thesis simulates turbo- propeller slipstream very well, satisfying the requirement of engineering calculation.
出处
《航空计算技术》
2008年第3期65-67,共3页
Aeronautical Computing Technique
关键词
RANS方程
螺旋桨滑流
激励盘
动量理论
RANS equations
turbo- propeller slipstream
actuator disk
momentum theory
