摘要
针对螺旋桨滑流流动复杂、非定常数值模拟难度大的问题,对激励盘模型进行深入研究,提高其对滑流模拟的精度。首先根据非定常数值模拟单独螺旋桨流动结果确定激励盘载荷。分析了考虑旋向载荷分布对滑流数值模拟的重要性。采用激励盘模型得到的定常滑流速度分布与螺旋桨非定常滑流的时间平均结果非常吻合,且采用激励盘理论能够明显地缩短模拟时间,在工程应用中具有很大的优势。
The flow around propeller is very complex, and the unsteady simulation method costs too much to handle it. To overcome this, actuator disk based on the load distribution of rotating blades simulated by unsteady method is presented. Analysis of the introduction of rotational velocity jump causing the swirl is conducted for the simulation of slipstream. The axial and tangential velocities in the slipstream simulated using actuator disk model agree well with the time-averaged results from unsteady simulation. Additionally, the actuator disk theory cuts down the simulation time, which is appreciated in engineering.
出处
《空气动力学学报》
EI
CSCD
北大核心
2012年第2期219-222,232,共5页
Acta Aerodynamica Sinica
关键词
螺旋桨
滑流
激励盘
非定常
propeller slipstream actuator disk unsteady
